计算题及答案(六年级下)

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求计算题,简便计算题,分数的小数的都可以

1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6
18. 9/7 - ( 2/7 – 10/21 ) 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/2 33. 101 × 1/5 – 1/5 × 21 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 42. 21.63-(8.5+9.63) 43.120-36×4÷18+35
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第1个回答  2013-05-27
1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92) 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) 11. 7/8 + ( 1/8 + 1/9 ) 12. 9 × 5/6 + 5/6 13. 3/4 × 8/9 - 1/3 14. 7 × 5/49 + 3/14 15. 6 ×( 1/2 + 2/3 ) 16. 8 × 4/5 + 8 × 11/5 17. 31 × 5/6 – 5/6
18. 9/7 - ( 2/7 – 10/21 ) 19. 5/9 × 18 – 14 × 2/7 20. 4/5 × 25/16 + 2/3 × 3/4 21. 14 × 8/7 – 5/6 × 12/15 22. 17/32 – 3/4 × 9/24 23. 3 × 2/9 + 1/3 24. 5/7 × 3/25 + 3/7 25. 3/14 ×× 2/3 + 1/6 26. 1/5 × 2/3 + 5/6 27. 9/22 + 1/11 ÷ 1/2 28. 5/3 × 11/5 + 4/3 29. 45 × 2/3 + 1/3 × 15 30. 7/19 + 12/19 × 5/6 31. 1/4 + 3/4 ÷ 2/3 32. 8/7 × 21/16 + 1/2 33. 101 × 1/5 – 1/5 × 21 34.50+160÷40 35.120-144÷18+35 36.347+45×2-4160÷52 37(58+37)÷(64-9×5) 38.95÷(64-45) 39.178-145÷5×6+42 40.812-700÷(9+31×11) 41.85+14×(14+208÷26) 42. 21.63-(8.5+9.63) 43.120-36×4÷18+35
第2个回答  2013-05-23
5.2X0.362=1.08824
25413.3x1523.25=2.635
35.2x45.x2.62=352
2516.25x52.3654=40.36
635.2x63.=52.02
52.16x253.2=5.362
2.36x3569.=3.02
52.3x5.=53.20
2.35x36.2=2013.6
52.3x64.3=52.36
25.36x42.36=52.36
251.3x25.3=225.3
20.3x42.3=127
32.6x1.35=23.52
2.35x.36.5=36.5
3.65x.36.2=5.36
36.2x2.36=3.26
56.2x13.2=5.375
2.36x75.3=26.3
254.3x62.3=519.3
5136.2x.632.2=52.36
21.5x362.=253.3
35.36x3.62=4.36
2.39x365.9=26.36
5798.6x32.46=4350.6
第3个回答  2013-05-23

    208*125=(200+8)*125=200*125+125*8=25000+1000=26000


第4个回答  2013-05-23
求未知数X。

2/8=9/x 1/2:1/5=1/4:x

解:2X=72 解:1/2X=1/5*1/4

X=72/2 1/2X=1/20

X=36 X=1/10

40:χ=2.5:15 1/2:x=4:16
解2.5X=600 X=240解:4X=8 X=2

用递等式计算。

(1) 0.625×(8.3-2.5×0.12) (2)3÷3/7-3/7÷3

解:原式=0.625*(8.3-0.3) 解:原式=3*7/3-3/7*1/3

=5 =7-1/7
=8/7
怎样简便怎样算。

(1)3098+3098×99  (2)6.3×8.7+8.7×3.7

=3098*(99+1) =(6.3+3.7)*8.7

=3098*100 =10*8.7

=309800 =87追问

还有木有,亲。

追答



求未知数X

3.5:(x-3)=0.4:1.6 (x-1)/4+1=(2x+1)/6
解:3.5/(X-3)=0.4/1.6 解:X/4-1/4-X/3-1/6+1=0

3.5/(X-3)=1/4 (3X-4X)/12+7/12=0

X-3=3.5*4 X=7

X=17

(1)25.65-3/4-(17又3/20-0.75) (2)7258×12又7/8+274.2×128.75

解:=25.65-0.75-(17.15-0.75) 解:=7258*12.875+274.2*128.75

=25.65-0.75-17.15+0.75 =7258*12.875+2742*12.875

= 8.5 =12.875*(7258+2742)

=12.875*10000=128750

(3) (4)

解=(1993*1994-1)/1993+(1993-1)(1993+1) 解:=(1-1/2)+(1/2-1/4)+(1/4-1/8)+(1/8-1/16)+(1/16-1/32)+(1/32-1/64)

=(1993*1994-1)/1993+1993*1993-1*1 =1-1/64

=(1993*1994-1)/1993(1+1993)-1 =63/64

=(1993*1994-1)/1993*1994-1)

=1

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