BIDMAS
Question 1:
72
÷
6
-
5
7
Question 2:
10
-
4
+
8
14
Question 3:
6
×
5
÷
1
30
Question 4:
12
-
10
÷
2
7
Question 5:
7
×
90
÷
9
70
Question 6:
18
÷
9
×
5
10