Question

3.7+3.28+6.8+2.3简便方法

Answer 1

3.7+3.28+6.8+2.3简便方法

=（3.7+2.3）+（3.28+6.8）
=6+10.08
=16.08

6.8×3.28+3.2×4.53简便方法计算

6.8×3.28+3.2×4.53简便方法计算
6.8×3.28+3.2×4.53
=
22.304+14.528
=36.832
直接计算

3.7÷2.5+2.3÷2.5的简便方法

3.7÷2.5+2.3÷2.5
=(3.7+2.3)÷2.5
=6÷2.5
=2.4

6.77+2.3+3.7用简便方法计算

6.77+2.3+3.7
=6.77+6
=12.77

3.28×16.7-3.28×7.7 3.28用简便方法计

3.28×16.7-3.28×7.7 3.28用简便方法计
3.28×16.7-3.28×7.7 3.28
=3.28*（16.7-7.7+1）
=3.28*10
=32.8

45×3.7-45×2.3+45用简便方法计算

45×3.7-45×2.3+45
=45×（3.7-2.3+1）
=45×2.4
=45×（2+0.4）
=45×2+45×0.4
=90+18
=108

8.9×3.28-1.72简便方法

(8.9+1.1) x 32.8-1.1 x 3.28-1.72
=32.8-(1+0.1) x 3.28-1.72
=32.8-(3.28+1.72+0.328)
=32.8-5.328
=27.472
希望可以采纳

3.28×1.1-3.28×0.1的简便方法是

3.28×1.1-3.28×0.1的简便方法是
=3.28x（1.1-0.1）
=3.28

3.28-(1.98-1.27)简便方法

3.28-(1.98-1.27)
=3.28-1.98+1.27
=3.28-(2-0.02)+1.27
=3.28-2+0.02+1.27
=1.3+1.27
=2.57