0.13×8+1.3×0.2和5.6×8.8+0.56×12的得数是多少?

问题描述:

0.13×8+1.3×0.2和5.6×8.8+0.56×12的得数是多少?

0.13×8+1.3×0.2=1.3×0.8+1.3×0.2=1.3×(0.8+0.2)=1.3