25×7×4简便运算？

Question

如题所述

Answer 1

Answer 2

25 X7X4
=25X4X7
=100X7
=700
运用乘法交换律

Answer 3

25×2×2×7
＝50×2×7
＝100×7
＝700
或者
5×2×5×2×7
=10×10×7
＝100×7
=700

Answer 4

25乘4乘7＝100乘7＝700

Answer 5

交换律可知

原式=25*4*7
=100*7
=700