16÷2.5 95.6×1.8+0.44×18 10.47-3.4+6.6 7.28-3/8+4.72-5/8 2.5×
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/09/20 06:44:43
16÷2.5 95.6×1.8+0.44×18 10.47-3.4+6.6 7.28-3/8+4.72-5/8 2.5×32×1.25 简便运算
要正确哦 必须得简便哦
我很急的!KKK!
路过的大哥大姐要帮帮忙啊!
要正确哦 必须得简便哦
我很急的!KKK!
路过的大哥大姐要帮帮忙啊!
16÷2.5
=16/(2.5)
=(10*1.6)/2.5
=(10/2.5)*1.6
=4*1.6
=6.4
95.6×1.8+0.44×18
=95.6*1.8+4.4*1.8
=1.8*(95.6+4.4)
=1.8*100
=180
10.47-3.4+6.6
=10.4+0.07-3.4+6.6
=(10.4-3.4)+(0.07+6.6)
=7+6.67
=13.67
7.28-3/8+4.72-5/8
=(7.28+4.72)-(3/8+5/8)
=12-1
=11
2.5×32×1.25
=(2.5*4)*(1.25*8)
=10*10
=100
=16/(2.5)
=(10*1.6)/2.5
=(10/2.5)*1.6
=4*1.6
=6.4
95.6×1.8+0.44×18
=95.6*1.8+4.4*1.8
=1.8*(95.6+4.4)
=1.8*100
=180
10.47-3.4+6.6
=10.4+0.07-3.4+6.6
=(10.4-3.4)+(0.07+6.6)
=7+6.67
=13.67
7.28-3/8+4.72-5/8
=(7.28+4.72)-(3/8+5/8)
=12-1
=11
2.5×32×1.25
=(2.5*4)*(1.25*8)
=10*10
=100
16÷2.5 95.6×1.8+0.44×18 10.47-3.4+6.6 7.28-3/8+4.72-5/8 2.5×
0.15:2.5 5cm:5/8m 1.8 :18 越快越好
简便计算(1/6+1/9-1/12)÷4×9和3/20×3.4+5.6×0.15和2.5-(3/5+2.4÷8/3)
3.6÷0.4-1.2×5 90÷【3.6-1.8】 【31.6-11.7】÷2.5÷0.4 3.4×7.8÷3.9 5
(8—2.5)÷3/4简算
五年级简便计算7.36乘3.4+6.6乘7.365.8乘9.9+5.8乘0.11.25乘2.5乘3248乘0.258.3
0.75×18÷0.15,2.07÷0.23÷0.45,21.36÷0.8-12.9,7.28+3.2÷2.5
4×(0.8+X)=72 8X+2X=31.4 (X+1.8)÷4=2.5 3X+5X-4X=1.6 解方程
10.47—3.4+6.6的简便计算方法
10.47—3.4+6.6简便运算
有理数 计算 0.7×13/11-6.6×5/3-3.4÷5/3+0.7×11/9 注:如9/8 读作九分之八.
五年级解方程(x-1.8)÷3=2.5和16(x+6)=432