8.4×0.82÷4.2 0.8÷0.32×0.4 0.8×9.6×2.5÷2.4 13.2÷8.8×0.8 (8.91-6.82)+(1.09+3.18)1.25×4.2÷(0.6÷8) 6×994+36 96+188×8 180+98×10 888+999 (16.8+1.4)÷0.7
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/23 20:20:38
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8.4×0.82÷4.2 0.8÷0.32×0.4 0.8×9.6×2.5÷2.4 13.2÷8.8×0.8 (8.91-6.82)+(1.09+3.18)1.25×4.2÷(0.6÷8) 6×994+36 96+188×8 180+98×10 888+999 (16.8+1.4)÷0.7
8.4×0.82÷4.2 0.8÷0.32×0.4 0.8×9.6×2.5÷2.4 13.2÷8.8×0.8 (8.91-6.82)+(1.09+3.18)
1.25×4.2÷(0.6÷8) 6×994+36 96+188×8 180+98×10 888+999 (16.8+1.4)÷0.7
8.4×0.82÷4.2 0.8÷0.32×0.4 0.8×9.6×2.5÷2.4 13.2÷8.8×0.8 (8.91-6.82)+(1.09+3.18)1.25×4.2÷(0.6÷8) 6×994+36 96+188×8 180+98×10 888+999 (16.8+1.4)÷0.7
8.4×0.82÷4.2 =(8.4÷4.2)×0.82=1.64;
0.8÷0.32×0.4化成分数做;
0.8×9.6×2.5÷2.4也是用约分比较好;9.6÷2.4=4,再×2.5×0.8=8;
96+188×8=12×8+188×8=8×(12+188)=200×8=1600;
13.2÷8.8×0.8这道题用约分的方式更好;
(8.91-6.82)+(1.09+3.18)=8.91+1.09-(6.82-3.81)=10-3.01=6.99;
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用分数式做就很简单了
8.4×0.82÷4.2 0.8÷0.32×0.4 0.8×9.6×2.5÷2.4 13.2÷8.8×0.8 (8.91-6.82)+(1.09+3.18)1.25×4.2÷(0.6÷8) 6×994+36 96+188×8 180+98×10 888+999 (16.8+1.4)÷0.7
8.4÷4.2=0.96÷0.3=( ) 4.08÷0.08=0.5×0.6=( )
66.6666÷12.5÷3.7÷0.8÷0.3
13.7÷12.5÷0.8 3.25×8.4+6.75×8.4 (8.1-5.4)÷3.6+8513.7÷12.5÷0.8 3.25×8.4+6.75×8.4(8.1-5.4)÷3.6+85.7
递等式计算.(能简便计算的要简便计算):(1)1.4×9.7+97×0.86(2)8.4÷0.8÷0.125÷4.2
巧算:4.2÷[(x-4.6)×0.8-0.3]=42巧算:(4.8×7.5×81)÷(2.5×2.7×2.4)
4.2÷1.25+5.8×0.8简算
递等式计算0.78+8.4÷4.2×3.6
1、1.25×1.25.×0.8×0.820个1.25 21个0.82、0.1+0.2-0.3-0.4+0.5+0.5-0.7-0.8.-199.2+199.33、1÷(2÷3)÷(3÷4)÷(4÷5).÷(2007÷2008)
2.05÷0.82+33.6
0.3÷0.54=0.8÷x 今晚要!
[2-(11.9-8.4×4/3)]÷11.3×0.8
(0.8x+0.9)÷0.5=(x+5)÷2+(0.3x-0.2)÷0.3
8.4÷1.25÷16
帮忙解几道口算题9.2÷2.3= 24÷4+56÷4=0.36+0.64= 4÷0.25=1.8×5= 30×(200+3)=8.4÷4.2= 8×1.5=4.8÷0.3= 2.73+1.5×4=按照我的原格式报答案!
8.4÷0.56竖式
8.4÷0.56竖式
要用简便算法314*0.82+31.4*0.8+31.4 53×0.03-0.7÷30