4.4-1.28-0.72=简便
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/22 16:52:25
![4.4-1.28-0.72=简便](/uploads/image/f/310617-9-7.jpg?t=4.4-1.28-0.72%3D%E7%AE%80%E4%BE%BF)
补充题:=10.2*9.8=(10+0.2)*(10-0.2)=100-0.04=99.96
.5×4.4=2.5×4×1.1或2.5×4.4=2.5×(4+0.4)=2.5×4+2.5×0.4故答案为:2.4,4,1.1,2.5,4,2.5,0.4.
0.72千克=(720)克有不懂的敬请留言
由0.72÷0.125=(0.72×8)÷(0.125×8)=5.76÷1=5.76
4.78+1.22-(1.28+0.72)=6-2=4
0.25*8.5*4=0.25*4*8.5=1*8.5=8.52.4*1.02=2.4*1+2.4*0.02=2.4+0.024=2.4241.28*8.6+0.72*8.6=(1.28+0.72)*
=(4.78+1.22)-1.28=6-1.28=4.72
2.5*4+2.5*0.4=11
x=2.8+0.72,x=3.52再问:谢大师再答:给好评哦,亲
3/8x+5/12x=38/419/24x+10/24x=38/4119/24x=38/41x=48/41x-75%x=5425%x=54x=54/25%x=2163/4:1/5=(3/4)*5:1=
=32.5÷(1/4)-1.28=32.5X4-1.28=130-1.28=128.72
x=1.28-80%x=0.48
4.78+1.22-(1.28+0.72)
应该是简便运算题,你抄错一个数字?两个3.=3.6×(0.38+0.72)=3.6×1=3.6再答:刚才点错小数点,括号外面是36,最后得数也是36。
原式=12.8*8.6+0.72*8.6=(12.8+0.72)*8.6你题是不是抄错了而且都不给分
0.72分之0.8=0.8/0.72=10/9=10:9
1平方千米=100公顷1.28平方千米=128公顷
=8.6*(1.28+0.72)=8.6*2=17.2
设空为xx-0.72x=560.28x=56x=200