+=
+=
1-=
-=
- =
× = ÷12= + = -
3.4+ = ÷ = ×10= 2× ÷2× =
- = + = - =
+ = - = - =
1﹣0.01= 5÷8= 12.6﹣7.6﹣0.4= 3y+0.7y= 8.2÷0.01= 35÷0.5= 0.32×99+0.32= 2.9m﹣m=
+ = + = 2- - = -0.75=
+ = 12.5×8= 0.64÷16=
0.025×100= 0.45÷4.5= 0.25×7×4=
姓名
小张
小欢
小刘
小玲
小童
成绩/秒
24
20
23
19
28
7.4+2.6= 40÷80= 10-0.95= 2.5×16= 6.3÷0.3=
202-98= 6- = 60×40% =