Simplifying by collecting like terms | Maths | Quizalize & Oak National Academy

Starter quiz

__________ have the same set of variables and corresponding exponents.
- Expressions
- Constants
- Variables
- Equations
- Like terms ✓
Which of these show pairs of like terms?
- $7y$ and $7x$
- $n$ and $8n$ ✓
- $-x$ and $4x$ ✓
- $-6e$ and $-3f$
- $12y$ and $\frac{1}{2} y$ ✓
Which of these will simplify to $3x$ ?
- $x \times x \times x$
- $x + x + x$ ✓
- $3 + x$
- $3 \times x$ ✓
Match the calculations with the correct answer when evaluated.
- 5-2
  
  ⇔
  
  3 ✓
- 2-5
  
  ⇔
  
  -3 ✓
- 5-(-2)
  
  ⇔
  
  7 ✓
- 7-2-5
  
  ⇔
  
  0 ✓
- 7-2+5
  
  ⇔
  
  10 ✓
- -7+2-5
  
  ⇔
  
  -10 ✓
Match the like terms.
- $5a$
  
  ⇔
  
  $-2a$ ✓
- $3b$
  
  ⇔
  
  $b$ ✓
- $-2c$
  
  ⇔
  
  $12c$ ✓
- $8ab$
  
  ⇔
  
  $-ab$ ✓
- $bc$
  
  ⇔
  
  ${{1}\over{4}}bc$ ✓
Which of the below is not a like term?
- $3e^2f$
- $-2e^2f$
- $3ef^2$ ✓
- $2e^2f$
- $3000e^2f$