BIDMAS
Question 1:
10
×
4
+
7
110
Question 2:
20
÷
4
-
2
3
Question 3:
72
÷
12
×
11
66
Question 4:
4
-
1
×
1
3
Question 5:
7
×
9
+
6
69
Question 6:
1
+
21
÷
2
11