239-47+61-53的简便计算

2025-06-24 09:33:51
推荐回答(4个)
回答1:

239-47+61-53
=239+61-47-53
=(239+61)-(47+53)
=300-100
=200

回答2:

239-47+61-53
=(239+61)-(47+53)
=300-100
=200

回答3:

239-47+61-53
=239+61-47-53
=300-(47+53)
=300-100=200

回答4:

解:=(239+61)-(47+53)
=300-100
=200