Let’s solve each addition problem step by step. We’ll add the three numbers in each row, one at a time.
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Left Column:
1.
2 + 3 + 1
→ 2 + 3 = 5
→ 5 + 1 =
6
2.
4 + 2 + 1
→ 4 + 2 = 6
→ 6 + 1 =
7
3.
1 + 3 + 5
→ 1 + 3 = 4
→ 4 + 5 =
9
4.
2 + 1 + 5
→ 2 + 1 = 3
→ 3 + 5 =
8
5.
6 + 2 + 1
→ 6 + 2 = 8
→ 8 + 1 =
9
6.
1 + 3 + 2
→ 1 + 3 = 4
→ 4 + 2 =
6
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Right Column:
7.
5 + 2 + 5
→ 5 + 2 = 7
→ 7 + 5 =
12
8.
8 + 3 + 5
→ 8 + 3 = 11
→ 11 + 5 =
16
9.
3 + 6 + 8
→ 3 + 6 = 9
→ 9 + 8 =
17
10.
9 + 2 + 1
→ 9 + 2 = 11
→ 11 + 1 =
12
11.
8 + 1 + 3
→ 8 + 1 = 9
→ 9 + 3 =
12
12.
6 + 2 + 6
→ 6 + 2 = 8
→ 8 + 6 =
14
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✔ All calculations double-checked and correct.
Final Answer:
2 + 3 + 1 = 6
4 + 2 + 1 = 7
1 + 3 + 5 = 9
2 + 1 + 5 = 8
6 + 2 + 1 = 9
1 + 3 + 2 = 6
5 + 2 + 5 = 12
8 + 3 + 5 = 16
3 + 6 + 8 = 17
9 + 2 + 1 = 12
8 + 1 + 3 = 12
6 + 2 + 6 = 14
Parent Tip: Review the logic above to help your child master the concept of 3 number addition worksheet.
