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六年级数学计算题大全

[3/4-7/8/(5/6+4/5)]*28 =[3/4-7/8÷49/30]*28 =[3/4-15/28]*28 =3/4*28-15/28*28 =21-15 =6 (1.25*4/5-0.76)/(1又3/8+1又1/40) =(1-0.76)/2.4 =0.24/2.4 =0.1 [(0.2+1/3)*4.5]/(8又1/20-6.45) =8/15*4.5/1.6 =2.4/1.6 =1.5 x+3又2/3=5 x*9又3/...

1.3*11.6-1.6*1.3 =1.3*(11.6-1.6) =1.3*10 =13 0.65*101 =0.65*(100+1) =0.65*100+0.65*1 =65+0.65 =65.65

1、简便计算 1)888×7+111×44 2)7.6÷5.4÷1.9×5.4 3)65×66/65 4)1-0.225÷0.9-0.75 5)7.63×9.9+0.763 6)3/7×4/5+4/7×4/5+4/5 7)3.56-(0.56+0.39) 8)1.25×6.4×0.25 9)14.52-(3.7+4.52) 10)3.42×101-3.42 2、解方程 1)1.2x-x=26 2)2/3=...

解: 2x-2-3x<3 -x<5 x>-5 所以原不等式解集为x>-5 晕,图片传不上去……数轴会画吧?就像直尺上面一样,然后在-5位置处画个小圈(空心的),从小圈处向上延伸一小条线段,然后向右画

(1)2.64×1.7-2.64×0.7 =2.64×(1.7-0.7) =2.64×1 =2.64 (2)31.5×1.07-3.15×0.7 =3.15×10.7-3.15×0.7 =3.15×(10.7-0.7) =3.15×10 =31.5 (3)2.7×5.7-2.7+5.3×2.7 =2.7×(5.7-1+5.3) =2.7×10 =27 (4)0.625÷0.125×0.8 =(0.625×0.8)×8÷...

共有玩具:8×5=40(个) 20元卖出的有:40-28=12(个) 一共卖:35×28+20×12=1220(元) 一共赚:1220-800=420(元)

1. 3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8. 7/8 + ( 1/8 + 1/9 ) 9. 9 × 5/6 + 5/6 10. 3/4 × 8/9 - 1/3 11. 7 × 5/49 + 3/14...

17/32 – 3/4 × 9/24 3 × 2/9 + 1/3 5/7 × 3/25 + 3/7 3/14 ×× 2/3 + 1/6 1/5 × 2/3 + 5/6 9/22 + 1/11 ÷ 1/2 5/3 × 11/5 + 4/3 45 × 2/3 + 1/3 × 15 7/19 + 12/19 × 5/6 1/4 + 3/4 ÷ 2/3 8/7 × 21/16 + 1/2 101 × 1/5 – 1/5 × 21 3/7 × 49/9 - 4...

给你写了几道有加减乘法的算式: 999 + 1111 = 2110 123+1289=1412 327+1845=2172 1111 − 199 = 912 70-25=45 123 − 89 = 34 12 × 13 = 156 11 × 67 = 737 99 × 9 = 891 123 × 7 = 861 竖式请见图:

从给出的答案看,第二项的分母错了。第二项应该是26/155。 2/35 +26/155 +72/455 +34/2015 =2/(5×7)+ 26/(5×31)+72/(7×65)+ 34/(31×65) =1/5 -1/7 +1/5 -1/31 +1/7 +1/65 + 1/31 -1/65 =(1/5 +1/5)+(1/7 -1/7)+(1/31- 1/31) +(1/65 -1/65) =2/5 ...

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