Let's solve the addition problems step by step. The task is to
add 7 to each number in the given equations.
We'll go through each row (1 to 10) and compute the sum for each column.
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Column 1:
1. $ 7 + 6 = 13 $
2. $ 7 + 2 = 9 $
3. $ 7 + 10 = 17 $
4. $ 7 + 7 = 14 $
5. $ 7 + 5 = 12 $
6. $ 7 + 9 = 16 $
7. $ 7 + 14 = 21 $
8. $ 7 + 26 = 33 $
9. $ 7 + 1 = 8 $
10. $ 7 + 20 = 27 $
✔ Column 1 Answers:
13, 9, 17, 14, 12, 16, 21, 33, 8, 27
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Column 2:
1. $ 7 + 3 = 10 $
2. $ 7 + 12 = 19 $
3. $ 7 + 15 = 22 $
4. $ 7 + 29 = 36 $
5. $ 7 + 4 = 11 $
6. $ 7 + 21 = 28 $
7. $ 7 + 13 = 20 $
8. $ 7 + 28 = 35 $
9. $ 7 + 8 = 15 $
10. $ 7 + 17 = 24 $
✔ Column 2 Answers:
10, 19, 22, 36, 11, 28, 20, 35, 15, 24
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Column 3:
1. $ 7 + 22 = 29 $
2. $ 7 + 14 = 21 $
3. $ 7 + 25 = 32 $
4. $ 7 + 30 = 37 $
5. $ 7 + 18 = 25 $
6. $ 7 + 23 = 30 $
7. $ 7 + 16 = 23 $
8. $ 7 + 19 = 26 $
9. $ 7 + 11 = 18 $
10. $ 7 + 27 = 34 $
✔ Column 3 Answers:
29, 21, 32, 37, 25, 30, 23, 26, 18, 34
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✔ Final Answer Sheet:
####
Column 1:
1. 13
2. 9
3. 17
4. 14
5. 12
6. 16
7. 21
8. 33
9. 8
10. 27
####
Column 2:
1. 10
2. 19
3. 22
4. 36
5. 11
6. 28
7. 20
8. 35
9. 15
10. 24
####
Column 3:
1. 29
2. 21
3. 32
4. 37
5. 25
6. 30
7. 23
8. 26
9. 18
10. 34
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✔ Tips for Solving:
- You can use mental math: think of adding 7 as "adding 10 and subtracting 3" — e.g., $ 7 + 22 = (22 + 10) - 3 = 32 - 3 = 29 $
- Practice helps build speed and accuracy!
Let me know if you'd like this formatted as a printable answer key!
Parent Tip: Review the logic above to help your child master the concept of 1st grade math addition worksheet printable.