3.3+6.7= 7.5﹣6= × = 4.4÷0.4=
+ = 0.4×25= ÷ = ×4.2+ ×5.8=
我们平时看到的幻灯片以每张秒的速度连续播放,请你算一算1分钟能播放几张幻灯片?
4+0.7x=102
0.9﹣0.45= 2.7+0.3= 4÷ ×4= 9÷0.9=
0.12×0.8= + = ÷ = 2.1﹣0.21=
2.5×4+2.5×4= + = - = 0.6﹣0.06=
10﹣0.9= 28+82= 20×5%= +×0=
4.8÷0.8= += ×= 1÷-1=
1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=
60÷80%= 75%+0.25= = =