0.58+0.41=
12÷4
20÷20%=
84
1
3.14×52×4=
0.042÷0.6=
0.99+0.1=
0.4m3:25L(求比值)=
÷25%= - = 3.14×20= 65×10%=
22÷ = 0.3²= x- x= + =
16.8-7=
4.8×12.5%=
4-−=
10÷=
+6.25=
算式: