(完整版)加法交换律练习题
1. 根据加法运算律填空
160 + (39 + 40) = 160 + (
) + 39 129 + (a + 71) = a + (
)+ ()
2. 填一填。
(1) _______________________________________________________________ 如果用a 和b 分别表示两个加数,那么加法交换律可表示为 ________________________________ o
⑵如果用a , b 和c 分别表示三个加数,那么加法结合律可以表示为 _____________________ 3.
根据加法运算律在 里填上合适的数。
(163 + ) + 15 = + (75 + )
()+ 28 = ( ) + a a + ( + b) = ( + 50) + ()
4. 计算下面各题,并用加法交换律进行验算。
5. 怎样算简便就怎样算。
99 + 201 = 201 + ()
()+ 78 = + 22
28 + ( ) = 45 + () 56 + 79
109 + 78 876 + 132
65 + 29 + 71 143 + (57 + 26) 99 + (38 + 101) 158 + 67 + 142 135 + 267 + 65 11 + 12 + 13 + 39 + 38 + 37
17 + 18 + 19 + 20 + 21 + 22 + 23 20 + 21 + 22 + 23 + 24 + 25 + 26 + 27 + 28
6.下面的等式符合加法的运算律吗?(符合的在后面的括号里画
“ ”) (1)253 + A = A + 253
( ) (2)139 + 72 + 25 = 39 + (75 + 25) ( ) (3)a — b = a — b
(4)560 + 210 = 210 + 650 (
) (5)147 + (53 + B) = (147 + 53) + B ( ) (6)B + C + D = B + (C + D)
7 •你能在 里填上合适的数或字母吗?
28 + 37=37 + ( ) A + 45=45 + ( )
45 + 85 + 67= ( ) +(85 + )
A + (27 + B)= ( + )+ B
8•下面的等式各用了加法的什么运算律?
65 + 18=18 + 65 运用了( )
37 + 54 + 46=37 + ( ) + (54 + 46)运用了(
28 +(72 + 65) = (28 + 72 )+ 65 运用了(
73 + 84 + 27= (73 + 27 )+ 84 运用了(
9 •先算一算,再比一比,那道算式的计算比较简便?
(37 + 98 )+ 63 98 +(37 + 63)
10 •你能很快找出那两个方框上的数的和是 100吗
36 51 69 85 1131 64 49 89 15
) ) )和( )
1. 填一填。
(1) 乘法交换律用字母表示是_____________
(2) 乘法结合律用字母表示是_____________
(3) 25 + 563 + 75 = (25 + 75) + 563 这里运用了()律和()律。
⑷对125 X 16简便计算时,可以写成125 X( ) X()。
(5)在乘法算式中,一个因数不变,另一个因数扩大10倍,积()。
⑹两个数相乘的积是3600,若一个数缩小100倍,另一个数不变,则这时的积是()
(7)1000 = 48 X 16 什)
2. 先填空,然后说说运用了什么运算律。
75 X28=28 X _ 应用了()。
25 X74 X2=(25 X X _ 应用了()。
15 X(8 X44)=(15 X X _ 应用了()。
3. 根据乘法运算律在()里填上合适的数。
28 X( )=55 X( )
25 X43 X4=43 X( X )
( )X a=( ) X18
50 X2 X7=( X2) X( )。
加法交换律和结合律练习题
练习范围:加法交换律和结合律题数:100月日姓名: 分秒成绩:615 + 86 + 185 = 81 - 23 + 319 = 621 - 150 + 79 = 228 - 211 + 172 = 966 - 361 - 539 = 656 - 215 - 285 = 235 + 253 + 265 = 357 - 274 - 26 = 829 - 104 - 196 = 379 + 15 + 885 = 712 - 686 + 88 = 535 - 428 + 365 = 680 - 65 - 335 = 89 + 432 - 69 = 189 - 36 - 119 = 262 + 187 + 213 = 656 + 244 + 376 = 282 - 134 + 418 = 919 + 194 + 206 = 811 + 276 + 124 = 402 - 369 - 2 = 956 + 627 - 656 = 554 - 409 + 346 = 419 + 381 + 249 = 409 + 113 + 391 = 472 + 688 + 228 = 662 + 462 - 462 = 939 - 241 - 559 = 283 + 317 + 10 = 408 - 170 + 92 = 5 + 348 + 95 = 519 + 82 + 618 = 752 - 552 + 148 = 576 - 143 - 376 = 27 + 352 + 23 = 782 - 51 - 149 = 195 + 665 - 145 = 379 + 161 - 309 = 745 + 681 + 55 = 139 + 661 + 380 = 784 - 64 - 84 = 969 - 272 - 369 = 972 - 220 - 672 = 951 - 490 - 10 = 28 + 281 + 2 =321 + 933 + 279 = 543 - 175 - 343 = 286 + 173 - 206 = 226 - 115 + 474 = 614 + 33 + 67 = 581 + 253 + 47 = 449 + 251 + 788 = 324 + 276 + 519 = 796 + 333 - 196 = 594 - 406 + 6 = 784 - 653 - 47 = 676 + 224 + 276 = 958 - 106 - 258 = 25 + 963 + 5 = 266 + 610 + 434 = 193 + 607 + 958 = 591 - 372 + 209 = 722 - 283 + 78 = 535 + 265 + 275 = 597 + 303 + 778 = 409 + 876 + 291 = 669 - 177 - 223 = 953 - 383 - 253 = 338 + 206 + 94 = 968 - 117 - 583 = 701 - 698 - 1 = 785 + 115 + 144 = 558 - 56 + 42 = 98 + 52 + 202 = 40 + 361 + 50 = 890 - 127 + 10 = 525 - 501 + 75 = 11 + 834 + 689 = 652 - 54 - 592 = 649 + 305 - 579 = 89 + 558 + 611 = 823 - 42 - 758 = 75 + 305 + 825 = 105 + 881 + 595 = 772 + 686 - 572 = 809 - 290 - 309 = 237 + 212 + 588 = 105 + 295 + 220 = 804 - 647 - 104 = 376 - 66 + 124 = 389 + 472 + 411 = 944 - 385 - 15 = 79 + 660 + 140 = 729 + 75 + 71 = 514 - 46 + 86 = 574 - 411 - 89 = 325 + 826 - 225 = 873 + 380 + 420 = 168 + 82 + 18 = 692 + 108 + 286 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:120 + 780 + 979 = 534 + 502 + 266 = 603 - 401 - 103 = 592 + 308 + 44 = 456 + 6 + 894 = 819 - 157 - 243 = 129 + 571 + 126 = 587 + 115 - 187 = 362 - 63 + 138 = 992 + 231 + 69 = 516 - 234 - 16 = 21 + 249 - 1 = 101 + 521 + 379 = 149 + 414 + 551 = 585 - 319 + 115 = 883 - 716 - 84 = 204 + 674 + 226 = 696 + 954 + 204 = 623 - 328 - 172 = 287 + 304 + 513 = 333 + 521 - 253 = 858 + 349 - 838 = 389 + 616 + 284 = 365 - 29 - 305 = 651 - 8 + 149 = 874 - 16 - 34 = 920 + 120 - 880 = 661 - 2 + 239 = 391 + 109 + 20 = 565 - 291 - 165 = 990 + 223 + 377 = 709 + 207 + 593 = 547 + 153 + 851 = 697 + 5 + 5 = 234 - 208 + 566 = 210 + 771 + 29 = 608 - 274 - 126 = 107 - 36 - 54 = 593 - 56 - 44 = 942 - 345 - 342 = 278 + 122 + 649 = 337 - 196 - 104 = 493 - 366 + 407 =96 + 704 + 111 =910 + 814 - 820 =458 + 235 + 165 = 627 - 16 - 567 = 961 - 169 - 61 = 264 - 158 + 336 = 152 + 526 + 148 = 682 + 45 + 855 = 575 + 9 + 11 = 526 + 252 + 248 = 254 - 164 + 546 = 644 + 899 - 554 = 347 + 553 + 555 = 456 + 244 + 935 = 282 + 223 + 418 = 243 - 164 + 657 = 248 + 630 + 652 = 936 + 386 - 846 = 398 + 648 - 98 = 289 + 89 + 611 = 115 + 172 + 185 = 981 - 76 - 381 = 133 + 667 + 226 = 802 - 408 - 292 = 936 - 93 - 707 = 54 - 43 + 846 = 963 + 37 + 53 = 918 - 428 - 272 = 385 + 54 + 546 = 795 - 770 + 5 = 701 - 472 - 1 = 145 + 716 + 655 = 712 + 2 - 652 = 776 - 205 - 195 = 841 - 285 - 115 = 808 - 401 - 108 = 215 + 271 - 115 = 936 - 303 - 136 = 945 - 89 - 445 = 94 + 159 + 241 = 171 - 116 + 629 = 79 + 821 + 483 = 866 - 311 - 189 = 857 + 549 - 767 = 286 + 214 + 505 = 126 + 455 + 474 = 189 - 59 + 611 = 335 - 15 + 65 = 563 + 137 + 838 = 405 + 262 + 238 = 213 + 287 + 257 = 526 + 802 + 74 = 43 + 186 + 757 = 145 + 758 - 75 = 667 + 33 + 309 = 805 - 590 - 110 = 326 + 474 + 301 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:1000 - 279 - 521 = 677 + 223 + 28 = 883 - 68 - 22 = 164 + 374 + 336 = 113 - 51 + 87 = 572 + 351 - 552 = 537 - 257 + 363 = 154 - 147 + 546 = 130 - 5 - 120 = 20 + 66 + 734 = 611 - 571 + 289 = 562 - 102 + 338 = 200 + 195 - 180 = 783 - 174 - 226 = 708 - 113 + 192 = 232 + 173 - 222 = 505 - 449 - 51 = 71 + 506 + 194 = 657 - 47 - 43 = 443 + 357 + 729 = 693 - 9 + 207 = 4 + 685 + 16 = 829 - 119 + 71 = 522 - 171 - 129 = 922 - 168 - 332 = 184 - 46 - 44 = 312 + 188 + 500 = 561 - 57 - 471 = 697 - 592 + 103 = 914 - 306 - 294 = 727 - 68 - 32 = 597 - 106 + 103 = 106 + 652 - 56 = 558 + 441 + 242 = 678 - 75 + 222 = 421 + 963 - 21 = 921 - 3 - 67 = 437 - 165 + 163 = 633 - 354 - 46 = 851 + 103 + 397 = 517 + 11 + 39 = 348 + 22 + 478 = 635 + 840 - 235 =690 - 79 - 521 =319 + 566 + 81 =893 + 25 + 25 = 243 + 319 + 81 = 490 + 110 + 830 = 878 + 42 + 458 = 6 + 54 + 575 = 95 + 683 + 217 = 3 + 297 + 99 = 828 + 299 - 748 = 650 - 228 - 50 = 375 - 64 - 36 = 158 + 542 + 795 = 657 + 170 + 530 = 136 - 112 + 64 = 497 + 419 - 197 = 578 - 319 + 22 = 798 - 778 + 2 = 145 + 355 + 283 = 835 - 179 - 521 = 145 + 10 + 655 = 299 - 197 + 501 = 424 - 73 - 124 = 988 + 546 - 688 = 722 - 562 - 22 = 758 - 257 + 42 = 143 + 318 - 93 = 210 + 627 + 73 = 136 + 364 + 196 = 729 - 84 - 16 = 506 - 36 - 426 = 5 + 95 + 45 = 130 + 26 + 470 = 608 + 780 + 20 = 716 - 139 - 561 = 161 - 159 + 239 = 706 + 194 + 314 = 992 + 155 + 745 = 67 + 533 + 768 = 684 + 644 + 56 = 284 + 216 + 200 = 139 + 661 + 681 = 395 - 73 - 127 = 671 - 388 + 29 = 900 - 271 - 429 = 544 - 38 - 494 = 122 + 678 + 83 = 791 + 50 + 10 = 489 - 295 + 311 = 8 + 392 + 47 = 346 + 773 - 266 = 888 + 748 - 808 = 624 - 352 - 224 = 478 - 340 + 22 = 840 - 175 - 125 = 710 - 399 - 110 = 798 - 336 + 2 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:362 + 646 - 332 = 997 + 685 + 215 = 918 + 468 - 818 = 108 - 55 + 192 = 774 + 579 + 221 = 354 + 8 + 392 = 272 + 515 + 285 = 959 - 395 - 259 = 400 + 947 + 400 = 62 + 147 + 238 = 207 + 493 + 238 = 823 - 172 - 528 = 234 + 15 + 15 = 950 + 728 + 72 = 114 + 186 + 479 = 866 - 125 - 466 = 377 - 281 - 77 = 949 + 729 - 549 = 718 - 28 - 172 = 181 + 319 + 519 = 730 - 133 - 467 = 397 + 303 + 17 = 507 + 393 + 146 = 69 + 431 + 682 = 599 + 301 + 384 = 974 - 143 - 557 = 760 - 118 - 382 = 117 + 275 + 225 = 230 + 95 + 205 = 218 - 73 - 18 = 139 + 37 + 763 = 57 + 97 + 243 = 171 - 4 - 76 = 521 + 79 + 767 = 681 - 500 - 81 = 670 - 34 - 470 = 304 + 296 + 97 = 218 + 82 + 737 = 496 + 104 + 970 = 215 + 182 + 285 = 533 - 48 - 152 = 518 + 15 + 82 = 472 - 180 + 28 =397 + 3 + 745 =594 - 383 + 306 =787 - 185 - 387 = 644 - 225 - 375 = 919 + 588 + 312 = 879 + 496 - 479 = 320 + 147 + 253 = 738 + 62 + 761 = 663 - 627 + 37 = 576 - 84 + 224 = 917 - 890 - 10 = 57 + 33 + 962 = 299 + 101 + 543 = 304 + 148 + 52 = 150 + 344 + 56 = 216 + 436 + 484 = 719 - 223 - 177 = 89 + 811 + 809 = 60 + 0 + 510 = 637 - 377 + 163 = 53 + 145 + 17 = 695 - 301 - 299 = 341 + 182 - 141 = 760 + 229 + 271 = 411 - 55 - 45 = 140 - 51 - 49 = 551 - 10 - 461 = 248 + 270 + 652 = 44 + 643 + 46 = 168 + 250 + 132 = 846 - 91 - 509 = 628 - 163 - 228 = 376 + 63 - 306 = 35 + 365 + 536 = 567 - 236 - 64 = 491 + 177 + 9 = 472 + 38 - 462 = 229 - 220 + 271 = 505 - 86 + 295 = 413 - 61 + 187 = 168 + 259 + 232 = 27 + 113 + 473 = 679 - 285 - 179 = 400 + 349 - 390 = 168 - 44 - 56 = 892 - 296 - 192 = 554 + 420 + 246 = 177 + 323 + 781 = 655 - 165 - 455 = 672 + 128 + 578 = 865 - 426 + 35 = 418 + 757 + 82 = 439 + 474 + 461 = 379 - 75 - 299 = 782 - 216 - 184 = 917 - 317 - 583 = 819 + 381 + 219 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:511 - 482 + 289 = 5 + 695 + 559 = 566 + 739 + 134 = 252 + 248 + 472 = 330 + 250 + 570 = 827 - 357 - 427 = 312 + 88 + 960 = 185 + 841 - 95 = 544 + 861 + 39 = 620 - 356 - 144 = 835 - 586 - 214 = 78 + 442 + 2 = 11 + 937 + 489 = 981 + 365 + 35 = 806 - 156 - 606 = 680 + 584 + 316 = 991 + 200 + 300 = 27 + 43 + 862 = 265 + 335 + 941 = 570 + 412 + 188 = 912 - 543 - 12 = 460 - 250 + 440 = 584 + 931 - 554 = 210 + 290 + 850 = 685 - 24 - 595 = 835 - 39 - 661 = 262 + 235 + 438 = 474 + 268 + 132 = 894 - 809 + 6 = 893 - 586 - 214 = 940 + 352 - 910 = 53 + 17 + 566 = 692 - 113 - 187 = 749 - 472 - 28 = 863 + 332 + 68 = 358 + 542 + 356 = 659 + 399 + 1 = 929 + 153 + 347 = 12 + 856 + 18 = 366 + 919 + 534 = 741 + 159 + 664 = 449 + 921 - 429 = 960 + 297 + 503 =211 + 240 - 171 =100 + 40 + 50 =179 + 597 + 321 = 763 - 308 - 292 = 718 + 10 - 418 = 927 - 224 - 527 = 872 - 278 - 372 = 329 + 684 - 229 = 251 + 459 - 51 = 207 + 710 + 190 = 372 + 228 + 576 = 213 + 340 + 560 = 488 + 353 + 547 = 598 - 26 - 474 = 307 + 493 + 841 = 946 - 442 - 246 = 148 + 665 + 752 = 100 + 400 + 293 = 983 - 349 - 551 = 426 - 251 - 126 = 770 + 786 - 670 = 749 + 4 + 296 = 802 - 582 - 118 = 421 - 179 - 221 = 281 + 219 + 319 = 34 + 324 + 16 = 586 + 250 - 506 = 147 - 17 - 23 = 686 - 265 + 214 = 491 + 209 + 252 = 561 + 289 + 411 = 591 + 171 - 541 = 940 - 65 - 35 = 258 + 442 + 304 = 735 - 215 - 185 = 437 - 321 + 463 = 289 - 168 + 311 = 715 - 596 - 104 = 412 + 288 + 156 = 851 - 9 - 11 = 233 + 101 - 183 = 104 + 796 + 771 = 537 + 296 + 163 = 562 - 66 - 4 = 507 + 93 + 692 = 99 + 201 + 260 = 217 + 34 + 266 = 560 - 5 - 75 = 932 - 446 - 154 = 110 - 34 + 390 = 714 + 775 - 684 = 925 - 88 - 835 = 655 + 194 + 45 = 798 + 458 + 442 = 949 - 363 - 149 = 443 - 51 - 149 = 515 + 444 + 285 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:50 + 89 + 211 = 401 + 408 + 499 = 791 - 40 - 191 = 554 + 27 + 43 = 60 + 40 + 33 = 525 - 25 - 475 = 787 - 196 - 587 = 664 + 136 + 487 = 649 + 605 - 569 = 188 + 284 + 412 = 234 + 531 + 369 = 551 - 482 + 249 = 740 - 626 - 40 = 501 + 857 - 421 = 542 - 501 + 158 = 938 + 378 - 438 = 128 + 939 + 172 = 406 + 989 + 194 = 393 + 53 + 307 = 845 + 358 - 795 = 453 + 111 + 689 = 459 - 269 + 341 = 347 + 153 + 71 = 731 - 663 + 69 = 922 - 696 - 4 = 567 + 271 + 629 = 985 - 762 - 185 = 216 + 773 + 284 = 671 - 588 + 229 = 558 - 125 - 58 = 766 - 199 - 366 = 611 + 698 + 2 = 903 + 287 - 3 = 664 + 951 - 164 = 634 + 494 + 266 = 397 + 854 - 297 = 319 + 481 + 563 = 719 - 647 - 19 = 118 + 323 + 182 = 629 + 853 - 429 = 682 + 546 - 82 = 500 - 29 + 200 = 442 + 58 + 373 =587 - 3 - 527 =552 + 679 - 52 =286 + 563 + 114 = 75 + 932 + 825 = 832 - 106 - 432 = 911 - 321 - 311 = 785 + 549 + 251 = 412 + 655 - 342 = 461 + 439 + 804 = 143 - 91 + 457 = 477 - 476 + 323 = 429 - 15 - 359 = 4 + 696 + 183 = 4 + 740 + 296 = 10 + 890 + 435 = 340 + 53 + 347 = 737 - 7 - 337 = 592 + 387 + 308 = 827 - 10 - 427 = 431 + 702 - 411 = 388 + 402 - 338 = 626 - 129 - 371 = 987 - 18 - 82 = 425 + 475 + 311 = 390 + 210 + 141 = 319 + 168 - 229 = 18 + 225 + 382 = 703 - 58 - 203 = 172 + 51 + 528 = 559 + 241 + 276 = 111 + 389 + 378 = 994 - 747 - 53 = 479 + 405 - 379 = 199 + 277 + 323 = 958 - 200 - 200 = 838 + 56 - 138 = 507 - 485 + 293 = 150 + 450 + 56 = 243 - 86 - 114 = 283 - 130 + 117 = 36 + 528 + 864 = 526 - 32 - 38 = 68 + 232 + 923 = 179 - 177 + 721 = 627 - 114 + 73 = 983 + 286 - 883 = 726 + 269 + 531 = 834 + 12 + 68 = 499 + 201 + 183 = 606 - 293 - 307 = 628 - 233 - 128 = 476 - 287 - 76 = 924 - 59 - 124 = 759 - 603 + 141 = 727 + 36 + 464 = 36 + 875 + 464 = 398 - 33 + 102 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:893 + 778 + 122 = 925 + 180 + 620 = 85 + 382 + 215 = 689 + 370 + 11 = 31 + 43 + 469 = 834 + 139 + 761 = 145 + 755 + 828 = 969 - 497 - 103 = 475 - 13 - 425 = 839 - 89 - 311 = 939 - 226 - 674 = 217 + 13 + 37 = 671 - 29 - 51 = 484 - 370 + 316 = 700 + 566 + 34 = 234 + 298 + 202 = 898 - 413 - 87 = 653 + 455 - 453 = 790 - 264 - 390 = 355 - 224 + 545 = 44 + 506 + 856 = 628 + 172 + 571 = 924 - 450 - 350 = 164 - 60 + 636 = 798 - 140 - 60 = 594 - 140 - 160 = 839 + 350 + 50 = 190 + 445 + 410 = 592 + 182 - 552 = 913 + 712 - 863 = 886 + 14 + 808 = 366 - 106 + 234 = 5 + 75 + 43 = 195 - 36 - 34 = 424 + 889 + 376 = 50 + 351 - 30 = 526 + 4 + 86 = 618 - 520 + 182 = 906 + 814 - 706 = 66 + 534 + 874 = 60 - 3 - 47 = 403 + 504 - 383 = 742 - 6 - 54 =324 + 561 - 284 =358 + 342 + 633 =905 + 875 - 205 = 308 - 19 - 108 = 508 + 414 + 292 = 306 + 167 + 394 = 428 + 15 + 785 = 495 + 614 - 445 = 467 + 181 + 619 = 785 - 420 - 185 = 325 + 197 + 103 = 275 + 665 - 265 = 593 - 481 + 307 = 837 - 529 - 71 = 265 + 873 + 27 = 291 - 39 + 509 = 715 - 84 + 85 = 95 + 860 + 705 = 325 + 175 + 822 = 545 - 474 + 355 = 218 + 630 - 178 = 34 + 61 + 666 = 938 + 371 + 429 = 455 - 171 + 245 = 871 - 430 - 370 = 553 - 32 - 453 = 476 + 790 + 24 = 68 - 12 - 18 = 364 + 111 + 136 = 669 - 432 + 31 = 642 + 158 + 222 = 826 - 10 - 790 = 875 - 185 - 75 = 496 + 204 + 29 = 655 - 603 + 45 = 359 + 241 + 278 = 891 - 805 + 9 = 864 - 93 - 707 = 3 + 77 + 140 = 512 + 238 + 162 = 934 - 31 - 169 = 12 + 278 + 588 = 713 - 13 - 693 = 235 + 818 + 165 = 416 - 97 + 384 = 806 - 56 - 44 = 768 - 296 + 32 = 184 + 267 + 433 = 561 + 32 - 501 = 113 + 164 + 387 = 686 + 972 - 636 = 335 + 326 - 235 = 730 + 787 + 113 = 398 + 202 + 904 = 319 - 179 - 21 = 596 + 433 + 367 = 4 + 596 + 173 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:438 - 128 + 262 = 509 + 291 + 334 = 186 + 250 + 350 = 52 + 940 + 28 = 652 - 38 - 592 = 812 + 547 + 353 = 983 - 681 - 83 = 136 + 364 + 223 = 30 + 304 + 196 = 535 - 285 + 365 = 756 - 522 - 56 = 700 - 27 + 200 = 4 + 165 + 335 = 975 - 71 - 775 = 476 - 93 + 24 = 835 - 516 - 135 = 991 - 11 - 191 = 150 - 80 + 750 = 749 - 216 - 84 = 652 + 290 + 610 = 427 - 145 + 173 = 560 - 297 - 103 = 842 - 78 - 142 = 473 - 399 + 127 = 679 - 23 - 379 = 671 - 210 - 190 = 115 - 10 + 385 = 715 - 7 - 705 = 665 - 66 + 35 = 138 - 55 + 162 = 872 - 498 - 72 = 945 - 767 - 45 = 943 - 600 - 200 = 97 + 227 + 173 = 575 - 515 + 225 = 873 - 77 - 673 = 750 - 555 - 145 = 360 + 40 + 99 = 410 + 90 + 134 = 204 + 792 - 104 = 462 + 238 + 401 = 801 - 95 - 101 = 343 + 312 + 88 =484 + 316 + 634 =192 + 8 + 961 =885 - 238 - 462 = 3 + 729 + 797 = 523 - 186 + 177 = 138 + 981 + 162 = 578 - 62 - 138 = 745 + 651 + 249 = 934 - 31 - 834 = 146 + 819 + 81 = 789 - 205 - 89 = 97 + 19 + 71 = 214 + 925 - 204 = 489 - 40 - 160 = 559 - 106 - 194 = 17 + 283 + 860 = 367 - 128 + 433 = 942 - 167 - 642 = 10 + 146 + 80 = 382 - 194 + 118 = 78 + 13 + 12 = 741 - 378 - 122 = 127 + 118 + 382 = 129 + 674 + 471 = 19 + 766 + 781 = 723 + 234 - 323 = 558 - 300 - 158 = 164 + 698 - 124 = 727 - 465 + 73 = 189 + 211 + 875 = 67 + 633 + 364 = 668 + 423 + 177 = 632 + 421 + 168 = 82 + 861 - 52 = 981 - 23 - 911 = 417 + 657 + 383 = 576 - 78 - 276 = 33 + 667 + 537 = 756 - 501 - 56 = 152 + 378 - 62 = 190 + 240 - 160 = 461 + 543 - 451 = 870 - 199 - 301 = 855 + 662 + 238 = 895 + 15 - 855 = 178 - 165 + 222 = 337 + 997 + 263 = 25 + 463 + 237 = 81 + 768 + 32 = 981 + 452 - 281 = 65 - 15 + 5 = 942 - 25 - 42 = 213 + 587 + 96 = 505 - 17 - 483 = 130 - 60 + 70 = 884 - 49 - 484 = 805 + 782 - 605 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:943 + 192 + 8 = 470 + 930 - 440 = 165 + 777 + 335 = 703 - 73 - 623 = 507 + 981 + 393 = 364 + 156 + 436 = 527 - 177 - 323 = 749 + 974 - 549 = 767 + 775 - 727 = 268 + 190 + 432 = 651 - 514 + 49 = 829 - 74 - 726 = 881 - 38 - 281 = 362 - 181 - 162 = 569 - 329 + 31 = 243 - 156 + 457 = 997 - 439 - 161 = 100 + 200 + 871 = 574 - 360 + 226 = 626 + 55 - 616 = 606 + 294 + 337 = 922 - 191 - 222 = 689 - 72 + 111 = 165 - 29 - 31 = 384 + 917 + 516 = 667 + 3 + 397 = 768 + 731 - 738 = 930 + 63 + 437 = 94 + 291 - 34 = 227 + 442 + 358 = 715 - 274 - 215 = 530 + 550 - 130 = 276 + 145 - 206 = 1 + 19 + 472 = 77 + 579 + 723 = 485 - 104 - 196 = 113 - 20 + 587 = 748 + 647 + 153 = 728 - 287 - 128 = 16 + 383 + 484 = 471 + 510 + 90 = 595 + 212 - 525 = 289 - 4 - 199 =205 - 50 + 95 =243 + 157 + 102 =765 + 692 + 35 = 203 + 83 + 517 = 688 + 335 - 608 = 1 + 402 + 99 = 695 - 623 + 5 = 747 + 630 - 347 = 37 + 43 + 283 = 746 - 270 + 154 = 749 + 52 + 51 = 946 + 94 - 746 = 511 - 2 - 411 = 722 + 126 + 674 = 189 - 94 + 411 = 918 - 113 - 787 = 578 + 240 - 528 = 48 + 847 + 53 = 825 - 744 + 75 = 126 + 191 + 309 = 623 - 380 + 277 = 684 - 8 - 32 = 793 - 347 + 7 = 852 + 785 - 52 = 777 + 153 + 123 = 804 - 14 - 754 = 537 - 121 - 379 = 749 - 564 - 136 = 683 + 247 + 217 = 818 - 784 - 16 = 575 + 921 - 475 = 94 + 506 + 327 = 928 - 18 - 52 = 730 - 412 - 88 = 664 + 629 - 584 = 728 + 802 - 228 = 124 + 748 + 176 = 451 + 575 + 225 = 246 + 192 + 608 = 382 - 39 - 292 = 787 - 195 + 13 = 948 + 405 + 195 = 971 - 13 - 387 = 954 - 469 - 454 = 262 + 773 - 162 = 628 + 336 - 588 = 655 + 45 + 229 = 535 + 310 - 35 = 34 + 159 + 36 = 798 + 508 + 292 = 299 + 380 + 401 = 47 + 853 + 877 = 72 + 497 + 428 = 643 + 192 + 608 = 58 + 32 + 711 = 757 - 46 - 667 = 965 + 672 - 565 =月 日 姓名:分秒练习范围:加法交换律和结合律 题数:100成绩:270 + 11 + 89 = 469 - 190 - 169 = 320 + 360 + 440 = 692 + 588 + 108 = 6 + 932 + 44 = 983 - 116 - 683 = 11 + 289 + 332 = 57 + 637 + 543 = 343 + 899 + 57 = 264 - 82 - 174 = 897 - 15 - 85 = 303 - 63 + 497 = 267 + 433 + 362 = 69 + 631 + 967 = 92 + 15 + 15 = 682 - 70 - 20 = 133 + 667 + 928 = 383 + 705 - 323 = 626 - 357 + 74 = 741 - 321 - 241 = 324 + 212 - 304 = 690 - 201 - 199 = 752 + 233 - 652 = 210 + 933 + 90 = 666 + 234 + 618 = 225 - 36 - 24 = 540 - 486 + 160 = 888 - 598 - 202 = 964 + 578 + 22 = 801 - 112 - 688 = 774 - 331 + 126 = 300 + 204 + 96 = 580 + 454 + 446 = 829 - 122 + 71 = 706 - 596 - 106 = 490 - 485 + 10 = 465 - 115 + 35 = 718 + 65 + 435 = 10 + 790 + 176 = 573 + 926 - 543 = 956 + 388 + 212 = 794 - 26 - 714 = 560 - 260 + 40 =560 + 110 + 190 =498 - 80 - 20 =670 - 23 - 580 = 918 - 75 - 118 = 522 + 178 + 386 = 827 + 926 - 427 = 931 + 903 - 901 = 694 + 116 + 206 = 909 - 315 - 509 = 351 - 51 - 261 = 718 - 176 - 424 = 48 + 913 + 2 = 997 + 146 - 977 = 681 + 307 + 293 = 257 + 543 + 343 = 819 - 17 - 779 = 883 - 133 - 483 = 140 - 32 - 48 = 600 - 56 + 0 = 768 + 877 - 268 = 904 - 11 - 19 = 956 - 677 - 223 = 330 - 18 - 72 = 798 - 247 - 498 = 781 + 469 + 331 = 851 - 284 - 316 = 972 - 430 - 470 = 10 + 538 + 690 = 145 - 13 + 155 = 777 + 123 + 309 = 342 + 424 + 476 = 713 - 445 - 13 = 927 + 299 + 1 = 999 - 9 - 929 = 968 - 814 - 68 = 72 + 444 - 22 = 606 + 326 + 474 = 660 + 468 + 40 = 269 - 95 + 231 = 248 + 148 + 152 = 799 + 101 + 528 = 536 + 764 - 516 = 31 + 369 + 900 = 726 - 472 + 74 = 566 - 59 - 466 = 254 - 35 + 246 = 160 + 228 + 472 = 188 - 16 - 24 = 516 + 184 + 217 = 704 - 640 - 60 = 735 - 474 - 26 = 753 + 601 + 299 = 582 + 158 + 542 = 907 - 233 - 467 = 205 + 590 + 395 = 942 + 356 - 342 = 719 + 142 + 358 =。
(完整版)加法、乘法交换律、结合律习题
一、基本演练:89+145+55 67+(151+33)236+(64+48|)二、能力提升:216+75+125 +84 158+(27+142)+48三、拓展应用:1+2+3+4+5+6+7+8+91+3+5 = 3×3=91+3+5+7=4×4=161+3+5+7+9=5×5=251+3+5+7+9+11+13=()×()=()1+3+5+……+15+17= ()×()=()1+3+5+……+23+25= ()×()=()38×25×442×125×8应用刚才探索的乘法结合律学生独立尝试,经过学生自己的尝试与交流,概括出简便计算的一些基本方法。
2、填空35×2×5=35×(2×___)(60×25) ×4=60×(___×4)(125×5) ×8=(___×___)×5(3×4) ×5×6=(__×__)×(__×__)3、利用发现的规律,计算。
25×17×4(25×125) ×(8×4)38×125×8×3全体学生独立练习,再讲评。
理解乘法交换率,结合律,会对一些算式进行简便计算。
【思考】125×32 125×32×4使下列的计算简便吗?38×25×442×125×8应用刚才探索的乘法结合律学生独立尝试,经过学生自己的尝试与交流,概括出简便计算的一些基本方法。
2、填空35×2×5=35×(2×___)(60×25) ×4=60×(___×4)(125×5) ×8=(___×___)×5(3×4) ×5×6=(__×__)×(__×__)3、利用发现的规律,计算。
小学口算练习题-加法交换律和结合律等,共200题)
581 462 119
792 193 307
349 330 151
102 51 798
54 509 746
562 416 84
69 321 579
26 274 388
330 524 170
260 466 160
457 440 57
50 550 85
532 612 462
467 133 80
452 242 458
5
口算练习-加法交换律和结合律
题数: 200
月 日 姓名: 分 秒 班级:
66 440 634
628 409 172
66 841 234
242 699 201
203 497 108
109 521 79
163 17 103
884 679 184
446 387 113
52 338 38
208 78 692
467 337 333
127 805 273
283 943 617
254 20 346
496 264 536
885 292 308
159 539 161
895 579 495
310 282 190
822 630 122
177 697 103
615 816 575
347 966 337
959 152 348
697 813 103
534 135 365
411 409 189
714 366 234
283 660 117
853 32 553
526 42 274
687 344 256
117 83 709
23 177 286
加法交换律练习题
1. 根据加法运算律填空。
99+201=201+( )( )+78=+22x+( )=133+x160+(39+40)=160+( )+39?129+(a+71)=a+( )+( )2. 填一填。
(1)如果用a和b分别表示两个加数,那么加法交换律可表示为____________。
(2)如果用a,b和c分别表示三个加数,那么加法结合律可以表示为______________。
3. 根据加法运算律在里填上合适的数。
?28+( )=45+( )(163+)+15=+(75+)( )+28=( )+a a+(+b)=(+50)+( )4. 计算下面各题,并用加法交换律进行验算。
56+79109+78876+1325. 怎样算简便就怎样算。
65+29+71143+(57+26) 99+(38+101) 158+67+142 135+267+65 11+12+13+39+38+3717+18+19+20+21+22+23 20+21+22+23+24+25+26+27+286. 下面的等式符合加法的运算律吗?(符合的在后面的括号里画。
)(1)253+A=A+253 () (2)139+72+25=39+(75+25)()(3)a-b=a-b () (4)560+210=210+650 () (5)147+(53+B)=(147+53)+B () (6)B+C+D=B+(C+D)()7.你能在里填上合适的数或字母吗?28+37=37+( )A+45=45+( )45+85+67= ( )+(85+)A+(27+B)=(+)+B8.下面的等式各用了加法的什么运算律?65+18=18+65运用了()37+54+46=37+( ) +(54+46)运用了()28+(72+65)=(28+72)+65运用了()73+84+27=(73+27)+84运用了()和()9.先算一算,再比一比,那道算式的计算比较简便?(37+98)+63 98+(37+63)10.你能很快找出那两个方框上的数的和是100吗?连一连。
加法交换律练习题
1. 根据加法运算律填空。
99+201=201+( )()+78=+22x+()=133+x160+(39+40)=160+( )+39129+(a+71)=a+()+( )2. 填一填。
(1)如果用a和b分别表示两个加数,那么加法交换律可表示为____________.(2)如果用a,b和c分别表示三个加数,那么加法结合律可以表示为______________。
3。
根据加法运算律在里填上合适的数。
28+()=45+()(163+)+15=+(75+)( )+28=( )+a a+(+b)=(+50)+( )4. 计算下面各题,并用加法交换律进行验算。
56+79109+78876+1325. 怎样算简便就怎样算。
65+29+71143+(57+26) 99+(38+101) 158+67+142135+267+65 11+12+13+39+38+3717+18+19+20+21+22+23 20+21+22+23+24+25+26+27+286. 下面的等式符合加法的运算律吗?(符合的在后面的括号里画“”。
)(1)253+A=A+253 () (2)139+72+25=39+(75+25)() (3)a-b=a-b ()(4)560+210=210+650 () (5)147+(53+B)=(147+53)+B () (6)B+C+D=B+(C+D)()7.你能在里填上合适的数或字母吗?28+37=37+( )A+45=45+( )45+85+67= ()+(85+)A+(27+B)=(+)+B8。
下面的等式各用了加法的什么运算律?65+18=18+65运用了()37+54+46=37+( )+(54+46)运用了()28+(72+65)=(28+72)+65运用了()73+84+27=(73+27)+84运用了( )和( )9.先算一算,再比一比,那道算式的计算比较简便?(37+98)+63 98+(37+63)10.你能很快找出那两个方框上的数的和是100吗?连一连。
加法交换律及结合律练习试题
加法交换律及结合律练习试题加法交换律和结合律练题一、口算练480-101=379598+99=697396-28-22=34643+189+57=289591+482+118=1191986+199=1185473+79-63=489三、简便计算练355+260+140+245=1000645-180-245=2201022-478-422=122987-(287+135)=565478-256-144=78672-36+64-36+64=728 487-287-139-61=0500-257-34-143=66 2000-368-132=1500 1814-378-422=1014 155+264+36+44=499 698-291-9=398568-(68+178)=322561-19+583=112582+165+35-82=200155+256+45-98=358 236+189+647=1072 759-126-259=374569-256-44=269216+89+1148+565=2018 514+189-214=489369-256+156=269732-254-512+161=127二、选择题1、答案:B2、答案:B3、答案:B4、答案:B×9937×9858×××46+78××123-23××99+37答案:302,191,836,044这一段是一个数学运算式,其中包含多个乘法和加减法。
将其计算得出答案为302,191,836,044.125×25×3224×25答案:2,525,000这一段是一个乘法式,将其计算得出答案为2,525,000.125×+189——答案:60,637这一段是一个数学运算式,其中包含多个乘法和加减法。
将其计算得出答案为60,637.228+(72+189)169++(291—176)答案:200,521这一段是一个数学运算式,其中包含多个加减法。
