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Evaluate algebraic expressions by substituting values for a variable · Grade 6 · C2.3

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Date: ______________________

1
Evaluate 5 × n + 8 when n = 6.
Warm-up
Answer:
2
Evaluate 5 × n + 7 when n = 9.
Warm-up
Answer:
3
Evaluate 4 × n + 9 when n = 4.
Warm-up
Answer:
4
Evaluate 9 × n − 47 when n = 9.
On level
Answer:
5
Evaluate 8 × n − 10 when n = 9.
On level
Answer:
6
Evaluate 9 × n − 13 when n = 6.
On level
Answer:
7
Evaluate 6 × a + 4 × b when a = 2 and b = 6.
Challenge
Answer:
8
Evaluate 6 × a + 4 × b when a = 9 and b = 3.
Challenge
Answer:
9
Evaluate 4 × a + 6 × b when a = 9 and b = 3.
Challenge
Answer:

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Worksheet code: eyJzIjoiYWxnZWJyYS1leHByZXNzaW9ucy1ldmFsdWF0ZSIsImQiOlsyNjYzNDQ0MDQsMTc4NjgzOTg5MSwxNjkyNDMyNjQyLDM0Njk5MTkyNSwxNjA2OTYwMSw3MDgxMDkxODAsMTYxMjY3MzEyOSwxMTEwMTEzNDY5LDIwMTc2Njk4MTFdLCJ2IjoxfQ.34215f94b28c

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Answer key · Evaluate algebraic expressions by substituting values for a variable

1.
38 — 5 × 6 = 30, then + 8 = 38.
2.
52 — 5 × 9 = 45, then + 7 = 52.
3.
25 — 4 × 4 = 16, then + 9 = 25.
4.
34 — 9 × 9 = 81, then − 47 = 34.
5.
62 — 8 × 9 = 72, then − 10 = 62.
6.
41 — 9 × 6 = 54, then − 13 = 41.
7.
36 — 6 × 2 = 12 and 4 × 6 = 24, so the sum is 36.
8.
66 — 6 × 9 = 54 and 4 × 3 = 12, so the sum is 66.
9.
54 — 4 × 9 = 36 and 6 × 3 = 18, so the sum is 54.