=4.6x(8.2-0.2)
=4.6x8
=36.8
运用乘法分配率
8.2×4.6-0.2×4.6=
4.6×（8.2-0.2）=
4.6×8=36.8
简便计算结果为36.8
提取数字4.6
原式＝4.6×(8.2－0.2)
＝4.6×8
=36.8
8.2x4.6-0.2x4.6简便计算?
8.2x4.6-0.2x4.6 =4.6x(8.2-0.2)=4.6x8 =36.8 运用乘法分配率
8.2×4.7 5.6×4.7怎么用简便的方法计算
简便方法计算如下：8.2×4.7 =8.2×5-8.2×0.3 =41-2.46 =38.54 5.6×4.7 =5.6×5-5.6×0.3 =28-1.68 =26.32
8.2×0.2+4.2×3用简便法怎么做?
简便计算过程 8.2×0.2+4.2×3 ＝8.2×0.2+（4+0.2）×3 ＝8.2×0.2+4×3+0.2×3 ＝0.2×（8.2+3）+4×3 ＝0.2×11.2+12 ＝2.24+12 ＝14.24
8.2乘以0.4乘以2.5的简便计算
=8.2X（0.4X2.5）=8.2X1 =8.2 不懂可再追问，求采纳！！、
2.4+7.6X4.3 8.2x0.94x0.5 能简算就简算
(2.4+7.6)×4.3
8.2+0.82×990的简便计算
8.2+0.82×990的简便计算过程如下图
脱式计算,能简便的要简便。 8.2-9.6x0.5 3.7x8.3+0.83x63
8.2-9.6x0.5 =8.2-4.8 =3.4 2、此题先利用乘除法性质，将0.83x63变换成0.83×10×63÷10=8.3x6.3，再提取公约数8.3，使用乘法结合律，使得运算简便，脱式计算如下：3.7x8.3+0.83x63 =3.7x8.3+0.83×10×63÷10 =3.7x8.3+8.3x6.3 =8.3x(3.7+6.3)=8.3x10 ...
8.2*34*2.6的简便计算
8.2*34*2.6的简便计算 =8.2x(30+4)x2.6 =(246+32.8)x2.6 =278.8x(3-0.4)=836.4-111.52 =724.88
8.2×4.7+5.6×4.7简便计算。
8.2×4.7+5.6×4.7 =（8.2+5.6）x4.7 =13.8x(5-0.3)=13.8x5-13.8x0.3 =69-4.14 =64.86 行家正解，不明白可以追问！祝您学习进步 满意请点击下面的【选为满意回答】按钮，O(∩_∩)O谢谢
简便计算8.2×3.4+82×0.66
解：原是=8.2x3.4+8.2x10x0.66 =8.2x3.4+8.2x6.6 =8.2x(3.4+6.6)=8.2x10 =82 答：答案是82.
