简算(1)24×1/5+76÷5(2)5.58-3/5+5.42-2/5

问题描述:

简算(1)24×1/5+76÷5(2)5.58-3/5+5.42-2/5

24×1/5+76÷5
=(24+76)x1/5
=100x1/5
=20
5.58-3/5+5.42-2/5
=5.58+5.42-(2/5+3/5)
=11-1
=10