1楼:宏哥
=12.5÷(2.5×0.4)
=12.5÷1
=12.5
2楼:匿名用户
12.5÷2.5÷0.4
=12.5÷(2.5x0.4)
=12.5÷1
=12.5
12.5÷2.5÷0.4的简便算法
3楼:匿名用户
先算二点五乘零点四算出结男在算十二点五除以他们的商
4楼:匿名用户
先等12.5/(2.5x0.4)然后等于12.5/1然后又等于12.5
5楼:匿名用户
12.5(2.50.4)
=12.51
=12.5
4.2x(12.5-2.5÷0.4)怎么最简便?
6楼:匿名用户
直接算,要不容易算错,先去算25除以4等于6.25,12.5减去6.25等于5.25,最后算出4.2乘以5.25
7楼:乐为人师
4.2x(12.5-2.5÷0.4)怎么最简便?
4.2x(12.5-2.5÷0.4)
=4.2x(12.5-6.25)
=4.2x6.25
=26.25
8楼:唏琞
这个式子就按正常的计算顺序简便,先算括号内,先乘除后加减。
12.5×(8+0.4)+2.5÷0.1简便计算
9楼:百度网友
=12.5*8+12.5*0.4+2.5*10=100+5+25=130
下面各题,能用简便方法计算的用简便方法计算:2.5×12.5×32 6.4÷2.5÷0.4 5.4×0.36+0.64×5.4 9
10楼:古玉红
(1)2.5×12.5×32
=(2.5×4)×(12.5×8),
=10×100,
=1000;
(2)6.4÷2.5÷0.4
=6.4÷(2.5×0.4),
=6.4÷1,
=6.4;
(3)5.4×0.36+0.64×5.4
=5.4×(0.36+0.64),
=5.4×1,
=5.4;
(4)9÷0.75+9÷0.25
=12+36,
=48;
(5)17.2-0.71-0.29
=17.2-(0.71+0.29),
=17.2-1,
=16.2;
(6)8.6+1.4÷2.5
=8.6+0.56,
=9.16.
12.5×16÷0.4如何简便运算?
11楼:再来一碗汤
12.5*16÷0.4
=12.5*4*4÷0.4
=50*4÷0.4
=200÷0.4
=500
在这道题中,运用乘法的结合律,可以简便计算
12楼:iyou风
简便计算如下
12.5×16÷0.4
=12.5×40
=500
13楼:追逐好爱玩儿
12.5×16÷0.4
=125÷10×4×4÷4÷10
=125×4
=500
12.5乘以7.2简便,12.5-2.5×2.8+7.2简便计算
1楼 一缕阳光 解 12 5 7 2 12 5 8 0 9 100 0 9 90 2楼 尐之逸 12 5 7 2 12 5 8 0 9 100 0 9 90 12 5 2 5 2 8 7 2简便计算 3楼 乐为人师 12 5 2 5 2 8 7 2 12 5 2 5 4 0 7 7 2 12 5 7...
12.5-2.5 2.8+7.2简便计算
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4.25 2.5 5.75 0.4简算
1楼 辛新土 4 25 2 5 5 75x0 4 1 7 2 3 4如有帮助请采纳, 如对本题有疑问可追问,good luck 2楼 匿名用户 4 25 2 5 4 25 4 2 5 4 17 10 1 7 5 75 0 4 5 3 4 2 5 2 3 10 2 3 4 25 2 5 5 75 0 ...