Printable algebra basics worksheets – grade 3 (hard) worksheet for kids. Free PDF download and answer key included.
1. Find the value of x if x + 4 = 12
2. Solve for y when 15 - y = 7
3. What number makes this equation true: 3 × ___ = 21
4. If a ÷ 4 = 6, what is the value of a?
5. Find the missing number: 8 + ___ = 20 - 5
6. Solve: b × 3 = 27
7. What is c if c - 9 = 14
8. Find the value that makes this true: 50 ÷ ___ = 10