Question

0.25×38.85+2.5×0.115简便计算怎么算？

Answer 1

0.25×38.85+2.5×0.115
= 0.25×38.85 + 0.25×10×0.115
= 0.25× ( 38.85+1.15）
= 0.25× 40
=10
请采纳

Answer 2

你好，这道题的简便算法如下：
0.25×38.85+2.5×0.115
=2.5×3.885+2.5×0.115
=2.5×(3.885+0.115)
=2.5×4
=10
望采纳。