乘除混合口算
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2+2^3-2*4-5/4=
彭芳1998答案:3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3
1.–55799-872.(-5)×(-2)23.-32×(-3)24.-32÷2÷25.20-5÷(-15)6.-6÷(-3×2)7.17-8÷(-2)4×(-3)
你是不是屏东的?哈哈,我做完了,去5年记得书上找,或练习上,或自己编.6年级练习上的比例解一大堆.你是不是也刚上初中?
3.5×200=1.5-0.06=0.75÷15=0.4×0.8=4×0.25=0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4+1/4=2+4/9=3-2/3=3
1.45+15×6=1352.250÷5×8=4003.6×5÷2×4=604.30×3+8=985.400÷4+20×5=2006.10+12÷3+20=347.(80÷20+80)÷4=218.7
2/3-2/5+2/4=5/7+7/5+7/2-5/2=6/8-6/5+2/5=5/8-6/4-2/7+7/5=2/8+5/9-3/5=8/7-3/2+3/4=9/5-2/1+3/5=6/7-5/2+
5+149*3264/233+5136/982-419+256*433*566/1177*688*29+128+6378-2647+3236*1095-2831*932*839*440+5860+43
1\同级运算,从左到右依次计算2\四则混合运算,先乘除,后加减3\有括号的,先算括号.既有小括号又有中括号,先算小括号里的,再算中括号里的,最后算括号外的
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
2.5X4=.
1.1/5*100+12/15*1002.2/5*100+3/5*1003.3/5*100+2/5*1004.4/5*100+1/5*100=1005.1/99*0.01+98/99*0.016.2/
27÷9=53+8=4×9=8÷2=32÷8=8÷1=9×9=84+7=80-44=1800-900=4900-1800=420+80=430+1000=500-60=89-8=64-8=34+9=1
[1-(1-X分之1)]除以(X-1分之X)[(X+2分之X的平方)-(X+2分之4)]除以(X分之X-2)[1-(X+2分之1)]除以(X+2分之X的平方-1)楼主这些还行不?可以我再发
稍微夹杂点加减法,别介意(-0.25)×4÷(-27)0.25×68÷50%-2.5÷1.25×(-4)+(-0.2)÷(-0.25)(-0.25)×4÷﹙﹣27﹚÷﹙﹣1﹚﹙﹣10¼﹚×4
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
3.5×200=1.5-0.06=0.75÷15=0.4×0.8=4×0.25=0.36+1.54=1.01×99=420÷35=25×12=135÷0.5=3/4+1/4=2+4/9=3-2/3=3
=[(a+1)²/(a+1)(a-1)-1/(a-1)]×(a-1)/a²=[(a+1)/(a-1)-1/(a-1)]×(a-1)/a²=a/(a-1)×(a-1)/a&