MathIQO worksheet
Evaluate algebraic expressions by substituting values for a variable · Grade 6 · C2.3
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Date: ______________________
- 1
Evaluate 4 × n + 4 when n = 5.
Warm-upAnswer:
- 2
Evaluate 2 × n + 2 when n = 6.
Warm-upAnswer:
- 3
Evaluate 4 × n + 8 when n = 6.
Warm-upAnswer:
- 4
Evaluate 9 × n − 26 when n = 12.
On levelAnswer:
- 5
Evaluate 5 × n − 9 when n = 9.
On levelAnswer:
- 6
Evaluate 5 × n − 3 when n = 6.
On levelAnswer:
- 7
Evaluate 2 × a + 4 × b when a = 6 and b = 6.
ChallengeAnswer:
- 8
Evaluate 6 × a + 4 × b when a = 8 and b = 5.
ChallengeAnswer:
- 9
Evaluate 5 × a + 3 × b when a = 4 and b = 5.
ChallengeAnswer:
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Worksheet code: eyJzIjoiYWxnZWJyYS1leHByZXNzaW9ucy1ldmFsdWF0ZSIsImQiOls5NTQ4NDU0NTIsMzMxMjQxNTYsMTYyNTE5MzkzLDI0MDkxODc5NSw1MDk4NDE0LDc3MDgwNTQzOSw3OTgxNzM2OTksMTYzMjgyOTg5MywyNTc1NTU1MF0sInYiOjF9.864fbfd32344
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Answer key · Evaluate algebraic expressions by substituting values for a variable
- 1.24 — 4 × 5 = 20, then + 4 = 24.
- 2.14 — 2 × 6 = 12, then + 2 = 14.
- 3.32 — 4 × 6 = 24, then + 8 = 32.
- 4.82 — 9 × 12 = 108, then − 26 = 82.
- 5.36 — 5 × 9 = 45, then − 9 = 36.
- 6.27 — 5 × 6 = 30, then − 3 = 27.
- 7.36 — 2 × 6 = 12 and 4 × 6 = 24, so the sum is 36.
- 8.68 — 6 × 8 = 48 and 4 × 5 = 20, so the sum is 68.
- 9.35 — 5 × 4 = 20 and 3 × 5 = 15, so the sum is 35.