Question

109×5－9×5的简便运算？

怎么简便运算？

Answer 1

提取公因数5109ⅹ5-9ⅹ5=5×（109-9）=5×100=500

Answer 2

109X5-9X5=100X5+9X5一9X5=100X5=500

Answer 3

109x5-9x5
=（109-9）x5
=100x5
=500
希望可以帮到你，谢谢！

Answer 4

简单方法步骤如下：
109x5－9x5
＝（109－9）x5
＝100x5
＝500

Answer 5

109×5−9×5
=(109−9)×5
=100×5
=500