Question

56✘72 +49✘72-5✘72的简便运算？

56✘72+49✘72-5✘72简便运算怎么做

Answer 1

56×72+49×72-5×72

=(56+49-5)×72

=(105-5)×72

=100×72

=7200

脱式验算计算结果

Answer 2

等于72×（56+49-5）=72×100=7200
所以结果等于7200

Answer 3

56×72+49×72－5×72
=72×(56+49－5)
=72×100
=7200