56-27+44-73简便运算四年级下册的速度,最快的加10个币
问题描述:
56-27+44-73简便运算四年级下册的速度,最快的加10个币
答
56-27+44-73
= 56+44-73-27
= (56+44) - (73+27)
= 100 - 100
= 0
答
=56+44-(27+73)
=100-100
=0
答
56-27+44-73
=(56+44)-(27+73)
=100-100
=0