8﹣5.3= + = 0.2×0.01= 2÷ = 0.82﹣0.08=
1﹣ = 20×3.5= × = ÷0.2= 0.04×50=
①3x﹣5=10 ②= ③x:=:
0.19+0.1= 20×70%= 1﹣= 2.7×4×2.5=
7.53﹣0.03= += +×0= 0.99÷0.1=
90×=
5﹣1.8=
0.72÷6=
1÷0.25=
0.95+0.5=
3.4×0.1=
8﹣8×=
60÷80%= 75%+0.25= = =
4321+500= 13.2-5.2= × = 0.2×1.4=
8÷25%= + = 2.4÷ = ÷ =
气温/℃
12
13
14
15
蟋蟀每分钟叫的次数
63
70
77
84