Year 5 Algebra (intro)
Find a missing number, solve simple equations, and continue linear sequences.
Try the worked examples below, then start an adaptive session that adjusts to your level.
Worked examples
RookieRead and interpret directly.
Solve: x − 5 = 12.
- 17
- 7
- 5
- 12
Answer: 17. Add to both sides.
ProCompare and infer.
Solve for the missing value: 3 × ▢ = 27
- 3
- 9
- 24
- 81
Answer: 9. To undo the multiplication by 3, divide by 3: 27 ÷ 3 = 9. Check: 3 × 9 = 27. ✓
GuruMulti-step reasoning.
Why does x = 5 satisfy x + 3 = 8 but not 2x = 12?
- A solution must make THAT equation true; 5 works for the first only.
- x always = 5.
- Equations are unrelated.
- Wrong.
Answer: A solution must make THAT equation true; 5 works for the first only.. Solution = makes equation true.
Skills in this topic
- Solve Missing Number AdditionPractise solve missing number addition within Algebra (intro) for Year 5, with worked examples and instant feedback.
- Solve Missing Number MultiplicationPractise solve missing number multiplication within Algebra (intro) for Year 5, with worked examples and instant feedback.
- Linear Sequence RulePractise linear sequence rule within Algebra (intro) for Year 5, with worked examples and instant feedback.
Frequently asked questions
- What is covered in Year 5 Algebra (intro)?
- Find a missing number, solve simple equations, and continue linear sequences. Key skills include Solve Missing Number Addition, Solve Missing Number Multiplication, Linear Sequence Rule.
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