135+76-35 435-213-87 435-65+35 用简便计算

135+76-35 435-213-87 435-65+35 654+97-54+103 用简便计算
2025-04-01 07:17:28
推荐回答(3个)
回答1:

如图所示

回答2:

135+76-35
=(135-35)+76
=100+76
=176
435-213-87
=435-(213+87)
=435-300
=135
435-65+35
=435+35-65
=470-65
=405
654+97-54+103
=(654-54)+(97+103)
=600+200
=800

回答3:

135+76-35
=(135-35)+76
=100+76
=176
435-213-87
=435-(213+87)
=435-300
=135
435-65+35
=435-(65-35)
=435-30
=405