Let’s solve each expression one by one, using the given values. We’ll substitute the letter with its number and then do the math.
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1. c – c (c = 6)
→ 6 – 6 =
0
2. 6y (y = 9)
→ 6 × 9 =
54
3. c · c (c = 4)
→ 4 × 4 =
16
4. 9 a (a = 2)
→ 9 ÷ 2 =
4.5
5. v · v (v = 2)
→ 2 × 2 =
4
6. a – 2 (a = 7)
→ 7 – 2 =
5
7. 8z (z = 6)
→ 8 × 6 =
48
8. 2v (v = 7)
→ 2 × 7 =
14
9. 5u (u = 4)
→ 5 × 4 =
20
10. 5b (b = 3)
→ 5 × 3 =
15
11. 6 – c (c = 5)
→ 6 – 5 =
1
12. c – c (c = 7)
→ 7 – 7 =
0
13. 8 ÷ u (u = 2)
→ 8 ÷ 2 =
4
14. b + 5 (b = 2)
→ 2 + 5 =
7
15. b – b (b = 2)
→ 2 – 2 =
0
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Final Answer:
1. 0
2. 54
3. 16
4. 4.5
5. 4
6. 5
7. 48
8. 14
9. 20
10. 15
11. 1
12. 0
13. 4
14. 7
15. 0
Parent Tip: Review the logic above to help your child master the concept of pre algebra evaluating expressions worksheet.
