37 45×12÷5能用简便方法计算吗?

2025-12-17 16:50:15
推荐回答(1个)
回答1:

我不知道你分开的3745还是45
如果是3745
3745×12÷5
=3745÷5×(10+2)
=749x10+749x2
=7490+1498
=7490+1500-2
=8990-2
=8998

如果是45
45×12÷5
=45÷5x12
=9x12
=9x(10+2)
=9x10+9x2
=90+18
=108