101×
60×551479193714115425×11+××(-)×24+++25××4(+)÷ 797954612129231450173417132851513115314335-58×÷-÷+÷×-×+2-+747444481535355575959
(10+17715445454313)××-×++1225+372÷12×1585÷+×20-1.8÷ 655656584551214
715721913623414÷(-×)(+)÷+19÷-×17[3-(+)×25]÷12÷0.3÷3101251075215545162110
7-(11575111114215112351÷-)×+(-)÷×+÷+×2+×÷4+× 3126242533334346216164
21931÷(+)×21521791436125582÷÷+(1-×)÷×( 84﹪+8.72)×(1-) 256795108715
41113137317542512××(÷+×40﹪÷20﹪(1-15﹪-0.45)÷1﹪×(+)÷+(+) 4251587105297235025
13377442828133133×-÷××÷[-(-)]÷[-(-)]÷50.4×1.9-1.8 3245359552452451010
[211971541941333137-(-)]÷3.76×0.25+25.8÷÷×-×××- 1192224551435915103254
18751593115322331-)(20+)×11÷15×÷(12-)×2-×-×(-)(-)÷35636105206455426151525×(
(552353132111312514+)÷(1-×)÷+÷×[÷(4-×)][+(-)÷]×解方程或比例。 4655715444523243314
8161313213117x-7=x+x=423x-1.8=2.7x+x=4.5(x-2)=13x+2.6=8.6:x=:4 332422524
816213117x-7=x+x=423x-1.8=2.7x+x=4.5(x-2)=13x+2.6=8.633242252÷x=2÷x=
x1x113133:x=:4=14.6-x=7.3(x-2) ÷0.9=1.7:x=3:12=14.6-x=7.3(x-2) ÷2222424
0.9=1.7
1711365431313:x=3:12=:=:xx: =7::=(15-x):2 657342544x3