999.9×2.6+333.3×1.2简便计算
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999.9×2.6+333.3×1.2简便计算
999.9×2.6+333.3×1.2简便计算
999.9×2.6+333.3×1.2简便计算
999.9×2.6+333.3×1.2
=333.3×3×2.6+333.3×1.2
=333.3×(7.8+1.2)
=333.3×9
=333.3×(10-1)
=3333-333.3
=2999.7
999.9×2.6+333.3×1.2
=999.9×2.6+333.3×3×0.4
=999.9×2.6+999.9×0.4
=999.9×(2.6+0.4)
=999.9×3
=(999.9+0.1-0.1)×3
=(1000-0.1)×3
=1000×3-0.1×3
=3000-0.3
=2999.7
999.9×2.6+333.3×1.2简便计算
999.9*7778+333.3*6666数学简算
999.9*7778+333.3*6666简便
999.9*222.2+333.3*333.4简便计算
1.2*【10.3-(6.2+2.6)】怎样简算
比和比例 化简比.1.2 :2.6
333.3(100个)*333.3(100个)简算方法
简算下面的题目(很简单)1.简便计算3.75-2.6+0.25-0.4=9.9+99.9+999.9+0.3=560÷16÷5=
9.9+99.9+999.9 怎么简算
42.8+X=2.6+1.2
999.9×999.9+199.99
999.9×999.9+199.99
2.6倒数是多少顺便 帮算下 1.2×2.6= 多少
简便计算333.3×6.666
数学简算题4道一.45*2.08+1.5*37.6二.52*11.1+2.6*778三.48*1.08+1.2*56.8四.72*2.09-1.8*73.6
1.2:x=2.6解方程,谁知道?
2.6x+1.2=42.8+x
1.2,1.4,2.6,4,6.6,( ),( )找规律.