43乘126减86乘13怎么简便计算

2025-01-20 18:33:43
推荐回答(2个)
回答1:

43x126-86x13
=43x126-43x2x13
=43x126-43x26
=43x(126-26)
=43x100
=4300

或者
=43x2x63-86x13
=86x63-86x13
=86x(63-13)
=86x50
=43x2x50
=43x100
=4300

回答2:

43×126-86×13
=43×126-43×2×13
=43×126-43×26
=43×(126-26)
=43×100
=4300