Basic Addition Subtraction - planet12sun.com - Free Printable

Let's solve each of the addition and subtraction problems step by step.

---

Left Column (Addition & Subtraction):

1. 7 + 8 =
7 + 8 = 15

2. 12 - 5 =
12 - 5 = 7

3. 10 + 10 =
10 + 10 = 20

4. 18 - 9 =
18 - 9 = 9

5. 6 + 9 =
6 + 9 = 15

6. 10 - 5 =
10 - 5 = 5

7. 12 + 3 =
12 + 3 = 15

8. 11 - 6 =
11 - 6 = 5

9. 8 + 8 =
8 + 8 = 16

10. 14 - 7 =
14 - 7 = 7

11. 6 + 4 =
6 + 4 = 10

12. 15 - 8 =
15 - 8 = 7

13. 19 + 1 =
19 + 1 = 20

14. 18 - 10 =
18 - 10 = 8

15. 11 + 5 =
11 + 5 = 16

---

Right Column (Addition & Subtraction):

16. 14 - 9 =
14 - 9 = 5

17. 5 + 9 =
5 + 9 = 14

18. 15 - 9 =
15 - 9 = 6

19. 7 + 9 =
7 + 9 = 16

20. 13 - 8 =
13 - 8 = 5

21. 12 + 6 =
12 + 6 = 18

22. 13 - 5 =
13 - 5 = 8

23. 9 + 9 =
9 + 9 = 18

24. 20 - 10 =
20 - 10 = 10

25. 7 + 7 =
7 + 7 = 14

26. 12 - 6 =
12 - 6 = 6

27. 8 + 4 =
8 + 4 = 12

28. 12 - 5 =
12 - 5 = 7

29. 6 + 8 =
6 + 8 = 14

30. 19 - 9 =
19 - 9 = 10

---

✔ Final Answers:

#### Left Column:
```
7+8=15
12-5=7
10+10=20
18-9=9
6+9=15
10-5=5
12+3=15
11-6=5
8+8=16
14-7=7
6+4=10
15-8=7
19+1=20
18-10=8
11+5=16
```

#### Right Column:
```
14-9=5
5+9=14
15-9=6
7+9=16
13-8=5
12+6=18
13-5=8
9+9=18
20-10=10
7+7=14
12-6=6
8+4=12
12-5=7
6+8=14
19-9=10
```

---

🔍 Explanation:

These are basic arithmetic operations involving numbers up to 20. The key is to:
- For addition: Combine the two numbers.
- For subtraction: Take the smaller number away from the larger one.

For example:
- 7 + 8: Think of it as 7 + 3 = 10, then add 5 more → 15.
- 14 - 9: Think of it as 14 - 10 = 4, then add back 1 → 5.

These strategies help with mental math and understanding number relationships.

Let me know if you'd like a printable version or practice tips! 😊