0.63*4.5 4.5
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/29 03:48:12
3:715:28:9
24/17>8/7>0,632>1又8>14/294/1>42/11>10/7>0.8>0.26
(1.)6分之7-(40%+5分之3)×6分之5原式=7/6-(2/5+3/5)×5/6=7/6-1×5/6=7/6-5/6=1/3(2.)5分之1×37%+0.63×5分之1+4.4原式=1/5×0
6+5/18—(4+5/18—0.63)=(6-4)+(5/18-5/18)+0.63=2+0+0.63=2.63
原式=6.28*3.7+6.28*10*0.63=6.28(3.7*10*0.63)=6.28*10=62.8原式=5/7+3+4/13=3+45/91+28/91=3又73/91
11-(0.23+0.23+4.54)=6
4.2:0.63=20:36分之5:10=1:128分之3:20分之9=5:68分之7:0.45=35:18
4.54+2.68÷1.6-3.08=4.54+1.675-3.08=3.13516.27-﹙5.45+6.27﹚=16.27-6.27-5.45=10-5.45=4.554分之3×6分之7-5分之2
(1)5比?比8设前一个“?”为x,设后一个“?”为y,则5:x=y:8xy=5×8=40所以,可填的数有:1,40;4,10等(2)0.63比?比10设前一个“?”为a,设后一个“?”为b,则0.6
153.9-4.54-0.46=153.9-(4.54+0.46)=153.9-5=148.9
正数有(6)个,负数有(4)个,整数有(5)个正数:0.63,7,9,4分之5,5分之11,1负数:-2,5,-3分之1,-0.05,-6整数:0,7,-6,9,1
25:60=5x5:5x12=5:120.49:0.63=49:63=7x7:7x9=7:96分之5:12分之25=12分之10:12分之25=10:25=2:53:9分之2=3/(2/9)=3x9/
11-0.23-0.23-4.54=11-(0.23+0.23+4.54)=11-(0.46+4.54)=11-5=6
6又5/18-(4又5/18-0.63)=6又5/18-4又5/18+0.63=2+0.63=2.63
6.67-(4.54-3.33)=6.67+3.33-4.54=10-4.54=5.4610.37-6.24+7.63-2.76=10.37+7.63-(2.76+6.24)=18-9=9
简便5分之1*百分之37+0.63*5分之1加4.4=1/5*0.37+0.63*1/5+4.4=1/5*(0.37+0.63)+4.4=0.2*1+4.4=4.6
0.37*0.37+2*0.63*0.37+0.63*0.63=(0.37*0.37+0.63*0.37)+(0.63*0.37+0.63*0.63)=0.37*(0.37+0.63)+0.63*(0
=0.63÷3.5x20.1x3.5一0.35=0.18x20.1x3.5一0.35=3.618x3.5一0.35=12.663-0.35=12.313再问:����20.1x3.5һ0.35�ü��
0.66循环0.63>8分之5>0.625%