Question

7.3x10.2-0.73-0.73(简便计算）？

Answer 1

7.3x10.2-0.73-0.73
=0.73x102一0.73-0.73
=0.73x（102一1一1）
＝0.73x100
=73

Answer 2

7.3×10.2-0.73-0.73
＝7.3×10.2-7.3×0.1-7.3×0.1
＝7.3×（10.2-0.1-0.1）
＝7.3×10
＝73

Answer 3

7.3×10.2-0.73-0.73
=0.73×10×10.2-0.73-0.73
=0.73×(102-1-1)
=0.73×100
=73

Answer 4

原式=7.3×10+7.3×0.2－.073×2
=73+0.73×2－0.73×2
=73

Answer 5

=7.3×10.2-7.3×0.1-7/3×0.1
=7.3×（10.2-0.1-0.1）
=73