问题
填空题
根据运算律填空.
3.6×0.75=0.75×______;
0.25×3.2=0.25×______×______;
7.6×10.1=7.6×______+7.6×______;
6.3×0.87+3.7×0.87=(______+______)×0.87.
答案
(1)3.6×0.75=0.75×3.6;
(2)0.25×3.2=0.25×(4×0.8)=(0.25×4)×0.8;
(3)7.6×10.1=7.6×(10+0.1)=7.6×10+7.6×0.1;
(4)6.3×0.87+3.7×0.87=(6.3+3.7)×0.87.
故答案为:3.6,4,0.8,10,0.1,6.3,3.7.