Question

22.6+(1.66+7.4)简算？

Answer 1

这个题的简算需要了解加法的交换律，将括号去掉原式变为22.6+1.66+7.4.然后，可以将1.66与7.4交换位置，得到22.6+7.4+1.66 = 30 + 1.66 = 31.66

Answer 2

答:
22.6+（1.66+7.4）
=22.6+7.4+1.66
=30+1.66
=31.66

Answer 3

22.6+(1.66+7.4)简算？
22.6+(1.66+7.4)
22.6+9.06
31.66
简算22.6+7.4+1.66
30+1.66
31.66

Answer 4

22.6+(1.66+7.4)
=22.6+1.66+7.4
=(22.6+7.4)+1.66
=30+1.66
=31.66

Answer 5

2.22×9.9+6.6×6.7 =2.22×3.3X3+3.3X2×6.7 =6.66X3.3+13.4X3.3 =(6.66+13.4)X3.3 =20.06 X3.3 =66.198