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33x6.7+0.67x67简算

9.9X6.7+0.67 =9.9x10x0.67+0.67 =99x0.67+0.67 =(99+1)x0.67 =100x0.67 =67

65x0.32+6.5x6.7+6.5 =6.5×3.2+6.5x6.7+6.5 =6.5×(3.2+6.7)+6.5 =6.5×9.9+6.5 =6.5×(10-0.1)+6.5 =6.5×10-6.5×0.1+6.5 =65+6.5-0.65 =70.85

解答过程 6.7×3+6.7×6+6.7 =6.7×3+6.7×6+6.7×1 =6.7×(3+6+1) =6.7×10 =67 运用了乘法结合律

3.8x6.7+33x0.38 =3.8x6.7+3.3x3.8 =3.8x(6.7+3.3) =3.8x10 =38

解:3.7x6.5+3.5 =3.7*(10-3.5)+3.5 =37-3.7*3.5+3.5 =37-2.7*3.5 =37-9.45 =27.55

解:=4.3*10*6.7/10+43*0.33 =43*0.67+43*0.33 =43*1 =43 满意请采纳!

原式 =9.9x6.7+1x0.67 =9.9x6.7+0.1x6.7 =(9.9+0.1)x6.7 =10x6.7 =67

6.9X6.7+0.69X33 =6.9X(6.7+3.3) =6.9X10 =69

2.6+7.4x6.7用简便的方法计算 =2.6+49.58 =52.18 没有合适的简便方法

14.8x6.3-6.3x6.5+8.4x3.7=(14.8-6.5)x6.3+8.4x3.7=8.3x6.3+8.4x3.7=(8.4-0.1)x6.3+8.4x3.7=8.4x6.3-0.1x6.3+8.4x3.7=8.4x(6.3+3.7)-0.63=8.4x10-0.63=84-0.63=83.37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...

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