六年级上册数学怎么简便怎么算脱式计算题及答案

2022-03-21 21:22:18 文档大全网 [ 字体：小中大 ] [ 阅读： ]

【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《六年级上册数学怎么简便怎么算脱式计算题及答案》，欢迎阅读！
怎么,上册,简便,答案,年级
1、 32×125×25

=4×8×125×25 =（4×25）×（8×125） =100×1000 =100000 9048÷26

=（2600+2600+2600+1248）÷26 =2600÷26+2600÷26+2600÷26+1248÷26 =100+100+100+48 =348 2、 2881÷ 43

=（1290+1591）÷ 43 =1290÷43+1591÷43

=30+37 =67 3.2×42.3×3.75-12.5×0.423×16 =3.2×42.3×3.75-1.25×42.3×1.6 =42.3×(3.2×3.75-1.25×1.6) =42.3×(4×0.8×3.75-1.25×4×0.4) =42.3×(4×0.4×2×3.75-1.25×4×0.4) =42.3×(4x0.4x7.5-1.25x4x0.4) =42.3×[4×0.4×(7.5-1.25)] =42.3×[4×0.4×6.25] =42.3×(4×2.5) =423

3、 1.8+18÷1.5-0.5×0.3

=1.8+12-0.15 =13.8-0.15 =13.65

4、 6.5×8+3.5×8-47

=52+28-47 =80-47 =33 (80-9.8)×5分之2-1.32 =70.2X2/5-1.32 =28.08-1.32 =26.76

5、 8×4/7÷[1÷(3.2-2.95)]

=8×4/7÷[1÷0.25] =8×4/7÷4 =8/7

6、 2700×（506－499）÷900

=2700×7÷900 =18900÷900 =21

7、 33.02－（148.4－90.85）÷2.5

=33.02－57.55÷2.5 =33.02－23.02 =10

（1÷1－1）÷5.1

=（1－1）÷5.1 =0÷5.1 =0

8、 18.1＋（3－0.299÷0.23）×1

=18.1＋1.7×1 =18.1＋1.7 =19.8