小学数学计算题大全

小学数学计算题大全
小学数学计算题大全

25-5x =15

79y +y =80

42x +28x =140

80+5x =100 7x -8=6 5x +35=100

53x -90=16 2x +9x =132 18y -8=100

6x -45=9x -81 3x -1=8 5x +35x =100

7x +5.3=7.4 30÷x +25=85 1.4×8-2x =6

7(x -2) =2x +3 18×(x -2) =270 12x =300-4x

5

3

x +2.4x =6 3.5:x =5.4:2 6×3-1.8x =7.2

1.8x -x =

2.4

x 10=8

.05.2 17-5x =2.4+5

1

3

4x =5

2.1 x -

41x =8

3

x -

41=8

3

12.6×

65

-2x =8 53×21-x =5

1 3

2

x +50%=42 4x -13=31

4.5+8x =2127

2x +4.3×3=2

114

x ×(1-

83)=3

21 1.6:x =

52:10

3

3x -16×3=102

4x +7.1=12.5 0.3x -2=9.1 131-x =89.2

3

1

:0.25=80%:x 43-21x =5

1 43x -21x =5

1

(900-x):(700-x)=3:2

x :

4

3

=12.3 43:5

3

=x :12 x -

72x =43 70%x +

5

1

x =3.6 25%+10x =

5

3

5x -215×3=7

5

3x ÷

4

1

=12 2×(x -2.6) =8

3475-1999 248+198 2843-598 724-298

345+497 3820-504 587+204 3700-2185-815

259+468+741+532 630-216-184 178÷25÷4

975+1174+92413820-1574+1352-1585 9712-832-85419715-732-1974-7

34 12.438+5.85-7.438 8.64-9.85+12.36 2.483+3.2+5.8-1.483

8×13×125 25×13×4 23×4×5 40×7×3×5

25×6×4×5 25×24 125×24 20×(17×5)

4×8×25×125 102×26 25×(13×12) (5×7)×80

276×38+276×62 16×25×19 152×19-52×19

46×18+18+18×53 6×29+6×71 29×3.17+3.17×71

99×14 75×99+75 102×36 49×80+80

975×18 97×854+97×834134×752+752×1395+7

52 46%×45+45×54% 40%×834+834÷2

1

2 31×128-27×31-31

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