Question

43x37 37x53 111用简便方法算

Answer 1

原式
=43x37+37x53+111
=43x37+37x53+37x3
=(43+53+3)x37
=99x37
=100x37-1x37
=3700-37
=3663

供参考。

Answer 2

43×37+53×37+111

=(43+53)×37+111
=96×37+111
=32×3×37+111
=32×111+111
=(32+1)×111
=33×111
=(30+3)×111
=30×111+3×111
=3330+333
=3663