Let’s solve each problem one at a time, step by step.
---
Problem #1: Calories from crackers and cookies
You ate:
- 5 crackers → each has 12 calories
- 2 cookies → each has 52 calories
Step 1: Find total calories from crackers
5 crackers × 12 calories = 60 calories
Step 2: Find total calories from cookies
2 cookies × 52 calories = 104 calories
Step 3: Add them together
60 + 104 = 164 calories
✔ Final Answer for Problem #1:
164
---
Problem #2: Average price per DVD
You bought:
- 8 DVDs at $22 each
- 4 DVDs at $13 each
Step 1: Find total cost of first set
8 × $22 = $176
Step 2: Find total cost of second set
4 × $13 = $52
Step 3: Add both costs to get total spent
$176 + $52 = $228
Step 4: Find total number of DVDs
8 + 4 = 12 DVDs
Step 5: Divide total cost by total DVDs to get average price
$228 ÷ 12 = $19
✔ Final Answer for Problem #2:
$19
---
Problem #3: Profit from selling necklaces
For each necklace:
- Cost of string: $0.68
- Cost of beads: $0.25
→ Total cost per necklace = $0.68 + $0.25 = $0.93
You sell each for $2.00
So profit per necklace = $2.00 - $0.93 = $1.07
You sold 30 necklaces
Total profit = 30 × $1.07
Let’s calculate that:
30 × $1.00 = $30.00
30 × $0.07 = $2.10
Add them: $30.00 + $2.10 = $32.10
✔ Final Answer for Problem #3:
$32.10
---
Final Answer:
Problem #1: 164
Problem #2: $19
Problem #3: $32.10
Parent Tip: Review the logic above to help your child master the concept of middle school math problem solving worksheet.