36✘72+144✘7的简便方法？

Question

如题所述

Answer 1

因为144就是72×2所以提取72利用乘法分配律得到72×后面的36+14。就是72乘以50，就是3600

Answer 2

144拆成72乘2，72做公因数提出来，乘36加14的和，望采纳

Answer 3

36×72+144×7
=18×2×72+144×7
=18×144+144×7
=(18+7)×144
=25×144
=25×4×36
=100×36
=3600

Answer 4

36×72+144×7
=36×72+36×4×7
=36×72+36×28
=36×(72+28)
=36×100
=3600

Answer 5

36✘72+144✘7的简便方法？
144＝36×4，再用乘法分配律。