Question

0.777×1.2+0.111×1.6的简便方法？

Answer 1

0.777×1.2+0.111×1.6
=0.111×7×1.2+0.111×1.6
=0.111×8.4+0.111×1.6
=0.111×(8.4+1.6)
=0.111×10
=1.11

Answer 2

0.777×1.2+0.111×1.6简便计算？
解:原式=0.111×7×1.2+0.111×1.6
=0.111×(7×1.2+1.6)→提取公因数0.111
=0.111×(8.4+1.6)
=0.111×10
=1.11

Answer 3

0.777x1.2+0.111x1.6
＝0.111x（8.4+1.6）
＝0.111x10
＝1.11
乘法分配律。