34×76+66×77怎么简便计算?

2024-11-09 04:45:23
推荐回答(3个)
回答1:

解:原式=34x76+66x(76+1)
=34x76+66x76+66x1
=76x(34+66)+66
=76x100+66
=7600+66
=7666

回答2:

回答3:

34×76+66×77
=34×76+66×(76+1)
=34×76+66×76+66
=(34+66)×76+66
=100×76+66
=7600+66
=7666