Question

12.5×3.2＋0.25×32

Answer 1

答案：48
解析：

原式=12.5×8×0.4＋0.25×4×8=40＋8=48 或原式=1.25×32＋0.25×32=(1.25＋0.25)×32=1.5×32=48 或原式=12.5×3.2＋2.5×3.2=(12.5＋2.5)×3.2=15×3.2=48