Question

4.6×0.7+4.3的简便计算怎么做？在线等（急）

Answer 1

解:原式=(4.3+0.3)x0.7+4.3
=4.3x0.7+0.3x0.7+4.3
=4.3x(0.7+1)+0.21
=4.3x(2-0.3)+0.21
=8.6-2.49+0.21
=8.6-2.28
=6.32

Answer 2

=(4.3+0.3)×0.7+4.3
=4.3×0.7+0.3×0.7+4.3×1
=4.3×(1+0.7)+0.21
=4.3×1.7+0.21
=7.31+0.21
=7.52

Answer 3

由题目要求可得式子4.6*0.7+4.3，在这个式子中乘法运算先计算，4.6*0.7可以看成4.6*(1-0.3)，4.6*0.7+4.3＝4.6*(1-0.3)+4.3＝4.6+4.3-4.6*0.3＝8.9-1.38＝7.52

Answer 4

由题目要求可得式子4.6*0.7+4.3，在这个式子中乘法运算先计算，4.6*0.7可以看成4.6*(1-0.3)，4.6*0.7+4.3＝4.6*(1-0.3)+4.3＝4.6+4.3-4.6*0.3＝8.9-1.38＝7.52

Answer 5

 解:4.6×0.7+4.3
=（4.3+0.3）x0.7+4.3
=4.3x0.7+0.3x0.7+4.3
=4.3x1.7+0.21
=6.8+0.51+0.21
=6.8+0.72
=7.52