+ =
5.4×=
﹣ =
6×3.14=
÷ =
39%+28%=
1﹣16%﹣54%=
9﹣0.99= 24÷=
2022÷2021= -=
-= += ×5÷×5= 4÷0.01×0.1=
4÷-1= 100×9.8+0.2= 15.4﹣(5.4﹣4.5)= 0.15:0.3=
187﹣28= 42.7+3= 0.622=
515÷5= 12.5%×8= =
÷=
0.05²=
21.9×÷8×0=
+(﹣)=
25×16=
2.8×=
32.56﹣18.5=
12.5×80÷12.5×80=