甲、乙两地相距22千米.小王骑摩托车、小李骑自行车同时从甲地去乙地,已知小王与小李的速度比是7:4,小王到达乙地后立即返回,在途中与小李相遇,相遇时小李行了多少千米?
口算 0.6+1.3= 8.9﹣5= 2+0.78= 8×0.9=0.32×0.2= 32.1×0.3= 7.5﹣0.3= 3.2÷0.08=5.6÷7= 9.5﹣7.65= 8.4÷0.2= 5.8+4.6=
接写出得数.5.2+0.5= 7﹣0.06= 5.6÷7= 8.3﹣5.7=1.06+9.4= 4.04÷4= 2.5×0.4= 9.93+0.1=10﹣2.3= 0.18÷6= 6÷4= 0.24×5=0.3×0.3= 2÷0.2= 15÷0.5= 20÷0.7=
口算:7.2+1.8﹦ 0.45÷10﹦ 0.125×8﹦ 9.6÷0.96﹦ 3÷0.5=5﹣3.2﹦ 6×0.5﹦ 6.3÷0.9= 0.1﹣0.01﹦ 16×0.125=
用竖式计算,并验算.37.25+14.78 验算:6.75﹣2.89 验算:1.06×4.7 验算:18.9÷0.54 验算:
直接写出得数. 5.03+15.7= 10﹣9.03= 1.07×0.06= 11.2×0.4= 2.15×3=3÷4= 5.2÷0.4= 1.2÷0.8= 2.5×6.2×0.4= 17.1×2.4+17.1×7.6=