35.7x()x0.25 4.87+3.45+() 使算式能简便计算

问题描述:

35.7x()x0.25 4.87+3.45+() 使算式能简便计算

35.7×(4)×0.25
4.87+3.45+(6.55)35.7×(4)×0.25
=35.7×(4×0.25)
=35.7×1
=35.7
4.87+3.45+(6.55)
=4.87+(3.45+6.55)
=4.87+10
=14.87望釆纳