2.22×9.9+6.6×6.7简算_其他解答

2.22×9.9+6.6×6.7简算

人气：485 ℃　时间：2020-04-08 11:53:39

解答

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