神马作文网简便运算4.7×3.4+0.47×53+4.7×1.3 0.25×0.9÷0,·25÷0,9 0,25×0,9÷0,25
来源：学生作业帮 编辑：神马作文网作业帮 分类：数学作业 时间：2024/11/17 21:14:51
简便运算
4.7×3.4+0.47×53+4.7×1.3 0.25×0.9÷0,·25÷0,9 0,25×0,9÷0,25×0,9 5,3×2,5+25×0,48－0,25
4.7×3.4+0.47×53+4.7×1.3 0.25×0.9÷0,·25÷0,9 0,25×0,9÷0,25×0,9 5,3×2,5+25×0,48－0,25
4.7×3.4+0.47×53+4.7×1.3
= 4.7×3.4+4.7x0.1×53+4.7×1.3
=4.7x(3.4+5.3+1.3 )
=4.7x10
=47
0.25×0.9÷0,·25÷0.9
= （0.25×0.9）÷（0,·25x0.9）
=1
0,25×0,9÷0,25×0,9
= 0.25×0.9÷(1/4)x0.9
= 0.25×0.9x4x0.9
=0.81
5,3×2.5+25×0,48－0,25
=5.3x2.5+2.5x10x0.48-2.5x0.1
=2.5x(5.3+4.8-0.1)
=2.5x10
=25
= 4.7×3.4+4.7x0.1×53+4.7×1.3
=4.7x(3.4+5.3+1.3 )
=4.7x10
=47
0.25×0.9÷0,·25÷0.9
= （0.25×0.9）÷（0,·25x0.9）
=1
0,25×0,9÷0,25×0,9
= 0.25×0.9÷(1/4)x0.9
= 0.25×0.9x4x0.9
=0.81
5,3×2.5+25×0,48－0,25
=5.3x2.5+2.5x10x0.48-2.5x0.1
=2.5x(5.3+4.8-0.1)
=2.5x10
=25