Question

666X444十332X112用简便方法计算？

Answer 1

666X444十332X112
=666X4X111十（333-1）X112
=222X3X4X111十333X112-112
=888X333十333X112-112
=（888+112）X333-112

=1000X333-112

=333000-112
=332888

Answer 2

666×444 + 332×112
= 333×888 + 333×112 - 112
= 333×1000 - 112
= 333000 - 112
=332888

Answer 3

666×444+332×112
＝666×444+（333-1）×（111+1）
＝666×444+333×111+333-111-1
＝333×2×111×4+333×111+221
＝9×333×111+221＝
999×333+221
＝（1000-1）×333+221
=332888

Answer 4

=333*2*4*111+332*112
=333*111*8+（333-1）*112
=333*888+333*112-112
=333*（888+112）-112
=333*1000-112
=333000-112
=332888

Answer 5

666x444+332x112=666x444+（333-1）x2x56=666x444+666x56-2x56=666x500-72=332928