Question

2700÷45=多少要巧算

Answer 1

90除45＝2，整好2700又是90的倍数是30倍，30乘2＝60 话说这玩意还需要巧算吗π_π

Answer 2

2700÷45=2700÷9÷5=300÷5=60

Answer 3

2700÷45=（9*300）÷（9*5）=9*300÷9÷5=300÷5=60

Answer 4

2700÷45
=（2250+450）÷45
=2250÷45+450÷45
=50+10
=60