Question

4.6×4.6+4.65×4的简便计算？

Answer 1

4.6x4.6+4.65x4
＝4.6x4.6+4.6x4+0.05x4
＝4.6x（4.6+4）+0.2
＝4.6x8.6+0.2
＝39.56+0.2
＝39.76

Answer 2

4.6×4.6+4.65×4=39.76
4.6×4.6=21.16
4.65×4=18.6
21.16+18.6=39.76

Answer 3

4.6x4.6+4.65x4=4.6Ⅹ4.6十(4.6+0.05)x4=4.6X4.6+4.6X4+0.05X4=4.6╳(4.6+4)+0.2=4.6ⅹ8十4.6╳0.6+0.2=37+2.76=39.76

Answer 4

原式=4.6(4+0.6)+4.6×4+0.05×4
=4.6×8+2.76+0.2
=36.8+0.2+2.76
=37+2.76
=39.76

Answer 5

4.6×4.6＋4.65×4简便计算：
4.6×4.6＋4.65×4
＝4.6×4.6＋（4.6＋0.05）×4
＝4.6×4.6＋4.6×4＋0.05×4
＝4.6×（4.6＋4）＋0.2
＝39.56＋0.2
＝39.76
4.6×4.6＋4.65×4＝39.76。