This document contains a series of addition and subtraction problems with the answers provided. It includes adding and subtracting single-digit numbers, adding double-digit numbers, and finding the sums and differences of multi-digit numbers up to the hundreds place value.

1. Advanced Program in
Mathematics

2. MENTAL MATHEMATICS
(ADDITION AND SUBTRACTION)

3. ◂ 8 + 4 =
◂ 5 + 9 =
◂ 3 + 6 =
◂ 8 + 5 =
◂ 6 + 4 =
12
14
9
13
10

4. 3
1
5
1
2
3
1
7

5. ◂ 8 + 6 =
◂ 2 + 9 =
◂ 3 + 7 =
◂ 9 + 8 =
◂ 6 + 5 =
14
11
10
17
11

6. 4
7
1
6
2
1
3
1

7. 11
12
7
5
9
4
6
10
16
20
13
18
15
19
14
17

8. 19 19 18 19
19 19 20 20

9. 18
6
9
47
37
8
48
74

10. 11 20 19 19
14 16 20 19

11. 91
95
80
65
80
44
100
91

12. 2
1
2

13. 2
2
4