58X64十42X64的简便计算怎么做?

2024-12-29 02:18:56
推荐回答(3个)
回答1:

提取公因数64
58x64+42x64
=64*(58+42)
=64*100
=6400

回答2:

提取公共的64
原式=(58+42)×64
=100×64
=6400

回答3:

=64×(58+42)
=64×100
=6400