24÷(4+2)=
[ ]
A.2
B.3
C.4
D.15
3×(2+3)=
5×(30÷5)=
C.30
18÷3-4=
4×6-20=
12÷(30-26)=
6×5+60=
A.20
B.30
C.40
D.90
52-7+39=
B.84
30÷6=
A.4
B.5
C.16
10÷2=