28*29+36*29+64*71简便运算

28*29+36*29+64*71简便运算
2025-02-25 08:56:54
推荐回答(1个)
回答1:

原式
=28x29+36x29+64x71
=(28+36)x29+64x71
=64x29+64x71
=64x(29+71)
=64x100
=6400

供参考。