This hard worksheet stretches addition thinking with story problems and missing addends. Multiple-choice questions ask how many stickers Tom started with if he got 3 more and now has 10, which pair does NOT add up to 10 (with choices like 8 + 2 and 6 + 3), and how many eggs a bird has after laying 8 more on top of 1. Fill-in-the-blank items like ___ + 9 = 10, 5 + ___ = 7, ___ + 4 = 8, and ___ + 2 = 10 require children to reverse familiar facts.
Mixing real-world contexts with abstract missing-addend equations strengthens the algebraic thinking first graders will lean on for subtraction and fact families.
Style:
Addition Within 10
Part A: Multiple Choice
Circle the best answer for each question.
1. Tom has some stickers. He gets 3 more and now has 10. How many did he start with?
A) 6
B) 8
C) 7
D) 5
2. Which addition sentence equals 6?
A) 2 + 5
B) 4 + 2
C) 3 + 4
D) 5 + 3
3. Which pair of numbers does NOT add up to 10?
A) 8 + 2
B) 5 + 5
C) 6 + 3
D) 7 + 3
4. A bird has 1 egg in its nest. It lays 8 more. How many eggs are there now?
A) 8
B) 10
C) 7
D) 9
Part B: Fill in the Blank
Write the correct answer on each line.
1. 1 + 9 = 10
2. 5 + 2 = 7
3. 4 + 4 = 8
4. 3 + 6 = 9
5. 8 + 2 = 10
Addition Within 10
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Tom has some stickers. He gets 3 more and now has 10. How many did he start with?
A) 6
B) 8
C) 7
D) 5
2. Which addition sentence equals 6?
A) 2 + 5
B) 4 + 2
C) 3 + 4
D) 5 + 3
3. Which pair of numbers does NOT add up to 10?
A) 8 + 2
B) 5 + 5
C) 6 + 3
D) 7 + 3
4. A bird has 1 egg in its nest. It lays 8 more. How many eggs are there now?
A) 8
B) 10
C) 7
D) 9
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) 1 + 9 = 10
2) 5 + 2 = 7
3) 4 + 4 = 8
4) 3 + 6 = 9
5) 8 + 2 = 10
Ready to Practice?
Complete each section carefully.
9 Questions
12-18 minutes
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