Question

9.26+8.9-(3.96+1.3)的简便计算方法？

Answer 1

9.26+8.9-（3.96+1.3）
=9.26-3.96+（8.9-1.3）
=5.3+7.6
=12.9

Answer 2

原式＝9.26-3.96+8.9-1.3
＝9.2-3.9+8.9-1.2-0.1
=9.2-1.2+8.9-3.9-0.1
＝8+5-0.1
＝12.9

Answer 3

简便计算如下：
9.26+8.9-（3.96+1.3）
=9.26+8.9-5.26
=9.26-5.26+8.9
=4+8.9
=12.9

Answer 4

原式=9.26+8.9－3.96－1.3
=9.26－4+0.04+9－0.1－1.3
=14.26－1.4+0.04
=14.3－1.4
=12.9

Answer 5

9.26+8.9-(3.96+1.3)
=9.26+8.9-3.96-1.3
=9.26+8.9-(3.9+0.06)-1.3
=9.26-0.06+(8.9-3.9)-1.3
=9.2+5-1.3
=14.2-1.3
=12.9