Grade 7Mathpractice16 questions

Algebraic expressions

Grade 7: write an expression, substitute values, collect like terms, expand brackets.

Free to play. Teams answer on one screen; your phone is the remote. No student devices.

Questions

Which expression means '5 more than n'?
- 5 − n
- 5n
- n + 5
- n − 5
Show answer
n + 5
Which expression means 'three times y, then subtract 4'?
- 3 − 4y
- 3(y − 4)
- 3y − 4
- y − 12
Show answer
3y − 4
The expression a + b ÷ 2 means the mean of a and b. (True or false?)
Show answer
False
Tom is t years old. His sister is 4 years younger. Write her age using t. (Answer out loud)
Show answer
t − 4
What is the value of 2x + 5 when x = 3?
- 10
- 11
- 16
- 35
Show answer
11
What is the value of 3a − 4 when a = −2?
- 10
- −10
- −14
- −2
Show answer
−10
Find the value of m² − 2n when m = 4 and n = 3. (Answer out loud)
Show answer
10
When x = 5, the expression x² − 3x has the value 10. (True or false?)
Show answer
True
Simplify 4a + 3a.
- 12a
- 7
- 7a
- 7a²
Show answer
7a
Simplify 5x + 2y − 3x + 4y.
- 2x + 6y
- 2x − 2y
- 8x + 6y
- 8xy
Show answer
2x + 6y
Simplify 3x² + 2x + x².
- 3x² + 3x
- 4x² + 2x
- 4x⁴ + 2x
- 7x²
Show answer
4x² + 2x
Simplify 7p − 2q − 3p + 5q. (Answer out loud)
Show answer
4p + 3q
Expand 3(x + 4).
- 3x + 12
- 3x + 4
- 3x + 7
- x + 12
Show answer
3x + 12
Expand 2(3y − 5).
- 5y − 10
- 6y + 10
- 6y − 10
- 6y − 5
Show answer
6y − 10
Expand −4(a − 3).
- 4a − 12
- −4a + 12
- −4a − 12
- −4a − 3
Show answer
−4a + 12
Expanding −3(x − 2) gives −3x − 6. (True or false?)
Show answer
False