This Grade 1 worksheet focuses on the near-doubles strategy for adding three numbers. First graders complete nine fill-in problems where they spot a double like 4+4 or 5+5, add it quickly, then add the third addend. A matching activity pairs four doubles-based expressions with their sums. Great for students who already know doubles facts and want to extend them to three-addend problems.
Style:
Adding Three Numbers
Part A: Fill in the Blank
Write the missing word or number on each line.
1. 4 + 4 + 2. Double 4 is 8. 8 + 2 = 10
2. 3 + 3 + 5. Double 3 is 6. 6 + 5 = 11
3. 5 + 5 + 3. Double 5 is 10. 10 + 3 = 13
4. 2 + 2 + 7 = 11
5. 6 + 6 + 1 = 13
6. 1 + 4 + 4 = 9
7. 7 + 3 + 3 = 13
8. 2 + 6 + 6 = 14
9. 5 + 2 + 5 = 12
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
4 + 4 + 1
→ 9
9
3 + 3 + 2
→ 8
8
5 + 5 + 4
→ 14
14
2 + 2 + 6
→ 10
10
Adding Three Numbers
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) 4 + 4 + 2. Double 4 is 8. 8 + 2 = 10
2) 3 + 3 + 5. Double 3 is 6. 6 + 5 = 11
3) 5 + 5 + 3. Double 5 is 10. 10 + 3 = 13
4) 2 + 2 + 7 = 11
5) 6 + 6 + 1 = 13
6) 1 + 4 + 4 = 9
7) 7 + 3 + 3 = 13
8) 2 + 6 + 6 = 14
9) 5 + 2 + 5 = 12
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
4 + 4 + 1
→ 9
9
3 + 3 + 2
→ 8
8
5 + 5 + 4
→ 14
14
2 + 2 + 6
→ 10
10
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
Auto-graded
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