43×28+23×28+66×39+33×66的简便计算

2025-03-24 02:31:53
推荐回答(2个)
回答1:

43×28+23×28+66×39+33×66
=(43+23)×28+66×(39+33)
=66×28+66×72
=66×(28+72)
=66×100
=6600

回答2:

43×28+23×28+66×39+33×66
=28×(43+23)+66×(39+33)
=28×66+66×72
=66×(28+72)
=66×100
=6600