Question

4.6×4.6+4.65×4的简便计算？

Answer 1

4.6x(4+0.6)+(4.6+0.05)x4
=4.6x4+4.6x0.6+4.6x4+0.05x4
=18.4+2.76+18.4+2
=18+0.4+2+0.76+18+0.4+2
=(18+2+18+2)+(0.4+0.4+0.76)
=40+1.56
=41.56

Answer 2

4.6x4.6+4.65x4
原式＝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 3

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=4.6*8.6+0.2=39.76

Answer 4

原式＝4.6×4.6+4.6×4＋0.05×4
＝4.6×（4.6+4）＋0.2
＝4.6×8.6+0.2
＝9.2×4.3＋0.2
＝9.2×（4＋0.3）＋0.2
＝36.8+2.76+0.2
＝36.8+2.96
＝36.8+3-0.04
＝39.76

Answer 5

4.6x4.6+(4.6+0.05)x4=
4.6x4.6+4.6x4+0.2=
4.6(4.6+4)+0.2=
4.6x8.6+0.2=
8.6(5+0.4)+0.2=43+3.44+0.2=
46.64