1.25+19.9=
21.5﹣1.98=
2.4×0.4=
0÷0.4=
0.36×10=
0.37+100=
1.5×4=
2.4÷2.4=
2.4÷1.2=
5.07÷3-5.07÷3=
0.52=
600×0.1=
+ =
- =
1- =
+=
1-=
1.25-=
24÷18=
19÷38=
+1.125=
-=
66×3÷66×3=
+= += += - =
1- = - = -= - =
6×= 2-=
x
2
?
y
100
50