Let’s solve each part step by step. We are given expressions with the variable
y, and we’re told what value
y equals in each case. We just plug that number into the expression and do the math.
---
a) y + 5, when y = 25
→ 25 + 5 =
30
b) y + 43, when y = 16
→ 16 + 43 =
59
c) y – 12, when y = 25
→ 25 – 12 =
13
d) y – 7, when y = 16
→ 16 – 7 =
9
e) 18 + y, when y = 25
→ 18 + 25 =
43
f) 40 + y, when y = 16
→ 40 + 16 =
56
g) 30 – y, when y = 25
→ 30 – 25 =
5
h) 35 – y, when y = 16
→ 35 – 16 =
19
i) y – 20, when y = 25
→ 25 – 20 =
5
j) y + 124, when y = 16
→ 16 + 124 =
140
---
All calculations checked — no mistakes.
Final Answer:
a) 30
b) 59
c) 13
d) 9
e) 43
f) 56
g) 5
h) 19
i) 5
j) 140
Parent Tip: Review the logic above to help your child master the concept of evaluate algebraic expressions worksheet.
