+ = - = ×12= 24× =
÷ = ÷3= ÷15= × =
80×40%=
+25%=
20÷50%=
-12.5%=
35%×40=
160%-1.2=
0.58+0.41=
12÷4
20÷20%=
84
1
3.14×52×4=
32.7-5.3-3.7 125×23-15×125 25×11×1.6
(-+)×18 (-)×7-28÷29 ×3.7+0.56×1.25-×12.5%
0.75×4=
×12.3=
6.1×9.8≈
( ):=
0.04+7.6=
0.92=
6.5+3.5÷10=
÷= ×= 18÷= ×=
:= 75kg:= :15分=
10.4+ = ÷70%= 1÷10%= 0÷1%=
24×25%= 1-75%= 180%- = 2×80%=
序号
成绩
19.3
6
11
19.5
2
19.1
7
12
18.9
3
8
19.2
13
18.5
4
18.7
9
18.8
14
19.9
5
20.0
10
15
19.0