3.8×5.46＋7.2×5.46-5.46怎样简算?4.6×2.02怎样简算?

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3.8×5.46＋7.2×5.46-5.46怎样简算?4.6×2.02怎样简算?3.8×5.46＋7.2×5.46-5.46怎样简算?4.6×2.02怎样简算?3.8×5.46＋7.2×5.46-5.

3.8×5.46＋7.2×5.46-5.46怎样简算?4.6×2.02怎样简算?
3.8×5.46＋7.2×5.46-5.46怎样简算?4.6×2.02怎样简算?

3.8×5.46＋7.2×5.46-5.46怎样简算?4.6×2.02怎样简算?
3.8×5.46＋7.2×5.46-5.46
=5.46×(3.8+7.2-1)
=5.46×10
=54.6；
4.6×2.02
=4.6×（2+0.02）
=9.2+0.092
=9.292

3.8×5.46＋7.2×5.46-5.46
=5.46X（3.8+7.2-1）
=5.46X10
=54.6
4.6×2.02
=4.6X（2+0.02）
=4.6X2+4.6X0.02
=9.2+0.092
=9.292

3.8×5.46＋7.2×5.46-5.46
=5.46（3.8+7.2-1）
=5.46*10
=54.6
4.6×2.02
=4.6*2*(1+0.01)
=9.2+0.092
=9.292

3.8×5.46＋7.2×5.46-5.46
=5.46x(3.8+7.2-1)
=5.46x10
=54.6
4.6×2.02
=4.6x2+4.6x0.02
=9.2+0.092
=9.292

5.46x（3.8+7.2-1）=54.6,4.6x2+4.6x0.02

3.8×5.46＋7.2×5.46-5.46
=(3.8+7.2)*5.46-5.46
=11*5.46-5.46
=(11-1)*5.46
=10*5.46
=54.6
4.6×2.02
=(4.6+0.4-0.4)*2.02
=5*2.02-0.4*2.02
=10.1-0.808
=9.292

3.8×5.46＋7.2×5.46-5.46怎样简算?4.6×2.02怎样简算? 5.46乘3.7+5.46乘7.3-5.46怎样算简便 3.8×0.23=? 1.55×0.22=? 5.46×0.5=?2.6×3.8=? 0.34×0.8=? 18.46-（5.46-3.78） 18.03+5.46+( )=29.3 9.78+5.46--3.78 用简便方法计算 5.46保留三位小数约是 5.46除以0.78=（）除以（） 9.87+5.46-6.63的简便运算 5.46+7.07+4.54+1.93用简便方法怎么计算? 11.46+8.2-5.46+12.8用简便算法怎么算 5.46×9.9+0.546用简便方法计算要过程 18.03+5.46+( )=29.3求括号里的数 3.8×1.28－0.2＋7.2×1.25要方法! 7.2乘以6.1+3.8除以0.197.2×6.1＋3.8÷0.19 将5.46的小数点去掉这个数扩大( )急快我们今晚要将5.46的小数点去掉这个数扩大( ) 把( )缩小为它的一千分之一是0.35,把5.46( )得把( )缩小为它的一千分之一是0.35,把5.46( )得到5460 4.6*3.1-3.1*5.46简便计算0.678*10.1-6.7 0.96*54+0.46*96的简便计算