Question

0.34+2.9÷2.9-0.2怎么算

Answer 1

0.34+2.9÷2.9-0.2怎么算

0.34+2.9÷2.9-0.2
=0.34+1-0.2
=1.34-0.2
=1.14

700X0.34X2.9 的简便算 怎么算？

700*（0.3+0.04）*（3-0.1）
=（700*0.3+700*0.04）*（3-0.1）
=（210+28）*（3-0.1）
=238*3-238*0.1
=714-23.8
=714-24+0.2
=690+0.2
=690.2

700x0．34X2．9简算

700X0.34X2.9
=7X34X2.9
=238X3-238X0.1
=714-23.8
=714-24+0.2
=690+0.2
=690.2

18.86×2.9+2.9*2.14-2.9怎么算

18.86×2.9+2.9*2.14-2.9
=2.9×（18.86+2.14-1）
=2.9×20
=58
乘法分配律

2.9*2.9 29*6.1 2.9简便怎么算

2.9*2.9 29*6.1 2.9简便怎么算
2.9*2.9 29*6.1 2.9
=2.9*（2.9+6.1+1）
=2.9*10
=29

2.9*2.9+2.9*6.1+2.9怎么简便计算？

原式=2.9（2.9+6.1+1）
=2.9*10
=29

2.9×101—2.9怎么巧算

2.9×101—2.9
=2.9x（101-1）
=2.9x100
=290

2.9/2.5+2.9*1.5怎么简算

2.9/2.5+2.9*1.5
=2.9*0.4+2.9*1.5
=2.9*（0.4+1.5）
=2.9*1.9
=2.9*（2-0.1）
=2.9*2-2.9*0.1
=5.8-0.29
=5.51

2.9-2.9 ×0.52怎么简便运算

2.9-2.9×0.52
=2.9×（1-0.52）
=2.9×0.48
=1.392

18.8÷[0.2×（7.6-2.9）]用简便计算

18.8÷[0.2×（7.6-2.9）]
＝18.8÷[0.2×4.7]
＝18.8÷0.2÷4.7
＝18.8÷4.7÷0.2
＝4÷0.2
＝20