BIDMAS
Question 1:
9
-
1
÷
1
8
Question 2:
17
-
5
÷
1
12
Question 3:
4
+
1
-
2
3
Question 4:
5
×
10
-
2
48
Question 5:
4
×
30
÷
6
20
Question 6:
4
+
11
-
1
14