六年级数学四则运算题大全

1.

20X[(2.44 —1.8) ￡.4 + 0.15] 14. 28-(3.4+1.25 1.4)

15. 2.55 >7.1+2.45 17.1

16. 77719+1111 X 3

17. 0.8 X〔15.5-(3.21+5.79)〕

18. (31.8+3.2 >4) ￡5

19. 31.5 X4 讯6+3)

20. 0.64 >25X7.8+2.2

21. 2￡2.5+2.5 ￡

22. 194 —64.8 ￡.8 >0.9

23. 36.72 韶.25 >9.9

24. 5180 —705X6

25. 24￡2.4 —2.5 >0.8

26. (4121+2389) ￡

27. 671 X15-974

28. 469X12+1492

29. 405X(3213-3189)

30. 3.416 ￡(0.016 X35)

31. 0.8 X(10 —6.76) ￡.2]

32. 5.67 X0.2-0.62

33. 18.1 X0.92+3.93

34. 4.07 X0.86+9.12.5

35. 147X8+8X53

36. 280 + 840+24X5

85 X(95 — 1440 +24) 58870+(105 + 20X 2) 80400 — (4300 + 870+15) 1437X 27 + 27X563 81432+(13 X52 + 78) 125X (33 — 1)

37.4 — (8.6 + 7.24 — 6.6) 156X 107-7729 37.85- (7.85+6.4 ) 287X 5+96990 +318 1554-[ ( 72-58 ) X 3]

2800 + 100 + 789

(947 — 599 )+ 76X64 36X(913 — 276+23) (93 + 25X21) X9 507+13X63 + 498 723 — (521 + 504) +25 384+12 + 23X 371 (39 — 21) X(396 +5) 156X[(17.7-7.2) 3+ [37.85- (7.85+6.4 ) ] 30 28X (5+969.9 +318) 81 + (72-54 ) X 9]

57X 12 — 560+35 848 — 640+16X 12 960 + (1500 — 32X 45 ) [192 —( 54 + 38) ] X 67 (12+24+80) X 50

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32 X(25+125)