Let's solve each addition problem shown in the image using the visual representations (dot patterns) and the given numbers.
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Left Column:
1.
9 + 11 = ?
- 9 + 11 =
20
2.
19 + 19 = ?
- 19 + 19 =
38
3.
20 + 9 = ?
- 20 + 9 =
29
4.
16 + 15 = ?
- 16 + 15 =
31
5.
14 + 13 = ?
- 14 + 13 =
27
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Right Column:
6.
15 + 16 = ?
- 15 + 16 =
31
7.
8 + 7 = ?
- 8 + 7 =
15
8.
18 + 20 = ?
- 18 + 20 =
38
9.
17 + 14 = ?
- 17 + 14 =
31
10.
12 + 10 = ?
- 12 + 10 =
22
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✔ Final Answers:
| Problem | Answer |
|--------|--------|
| 9 + 11 = |
20 |
| 19 + 19 = |
38 |
| 20 + 9 = |
29 |
| 16 + 15 = |
31 |
| 14 + 13 = |
27 |
| 15 + 16 = |
31 |
| 8 + 7 = |
15 |
| 18 + 20 = |
38 |
| 17 + 14 = |
31 |
| 12 + 10 = |
22 |
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🔍 Explanation:
Each number is represented visually using dot arrays (like ten frames), where full blocks represent tens and individual dots represent units. For example:
- A block with 10 dots represents 10.
- A block with 9 dots represents 9.
The total is simply the sum of the two numbers shown below the dot diagrams.
These problems are designed to help students practice mental math and addition strategies, especially with numbers near multiples of 10.
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✔ All answers are correct and ready to be filled in the blanks!
Parent Tip: Review the logic above to help your child master the concept of addition worksheet with manipulatives.
