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Missing Number Algebra
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Missing Number Algebra
🔍 Part 1: Find the Missing Number
1. What number goes in the box?
5 + ☐ = 12
2. What number goes in the box?
☐ - 4 = 9
3. What number goes in the box?
8 + ☐ = 15
4. What number goes in the box?
☐ - 6 = 7
5. What number goes in the box?
3 + ☐ = 11
🔤 Part 2: Letters in Algebra
6. If a = 7, what is a + 5?
7. If b = 9, what is b - 3?
8. If c = 4, what is c + 8?
9. If d = 15, what is d - 7?
🎯 Part 3: Choose the Correct Answer
10. What number makes this equation true? x + 6 = 14
6
8
10
20
11. What number makes this equation true? 12 - y = 5
5
7
12
17
12. What number makes this equation true? z + 9 = 16
7
9
16
25
🧮 Part 4: Complete the Number Sentences
13. Fill in the missing numbers:
4 + _____ = 13
_____ - 5 = 8
7 + _____ = 19
_____ - 9 = 6
14. If m = 12, fill in the answers:
m + 3 = _____
m - 4 = _____
m + 7 = _____
m - 8 = _____
🌟 Part 5: Challenge Problems
15. What letter value makes both equations true?
p + 5 = 11 and p + 2 = 8
16. Circle all the numbers that could replace 'n' to make this true: n + 4 > 10
5
6
7
8
9
17. Create your own missing number problem and solve it:
About This Worksheet
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