12.48-21.28/7.6*3.1 8.64/2.7+6.5*0.6
12.48-21.28/7.6*3.1 8.64/2.7+6.5*0.6
12.48-21.28÷7.6×3.1 要脱试
12.48-21.28÷7.6x3.1 计算
21.28-21.28/7.6*3.1应该怎样简算
8.64减8.64除以2.7加6.5乘1.4(简便计算)
22.8-22.8/7.6*3.1
0.8888×0.6+0.2222×7.6
7.6*2.4+6.5*7.6+7.6+0.76 用简便方法计算
奥数网21.8-(21.8/7.6*3.1)=多少
8.64减8.64除2.7加上9.1等于多少(递等式)
8.64-8.64÷2.7+9.1 3.83×(3.83-2.3)+1.5 递等式计算
简算8888×0.6+0.2222×7.6