Question

3.8×4+6.2÷0.25用简方法计算

Answer 1

3.8×4+6.2÷0.25
＝3.8×4+6.2÷1/4
＝3.8×4+6.2×4
＝（3.8+6.2）×4
＝10×4
＝40

Answer 2

3.8加6.2然后乘以4就完了

Answer 3

3.2×4+6.8÷0.25

=3.2×4+6.8×4
=﹙3.2+6.8﹚×4
=10×4
=40