Explanation:
We are given 7 problems. The instructions say: *“Can you spot the ‘trick’ problem which is not a multiplication problem?”* So our job is to solve each one, but also identify which one does
not require multiplication.
Let’s go through each problem one by one:
1) A foot is about 30 cm. A basketball court is 50 ft wide. How many cm wide is this?
→ We need to convert feet to cm: 50 ft × 30 cm/ft =
1500 cm.
✔ This uses multiplication.
2) A sailfish swims at 30 meters per second. How far in 15 seconds?
→ Distance = speed × time = 30 m/s × 15 s =
450 meters.
✔ Multiplication.
3) A pint is 568 mL. How many mL in a 2-pint carton?
→ 2 × 568 =
1136 mL.
✔ Multiplication.
4) A pair of scissors costs $2.50. How much for 4 pairs?
→ 4 × $2.50 =
$10.00.
✔ Multiplication.
5) One M&M packet has 36 sweets. How many in 5 packets?
→ 5 × 36 =
180 sweets.
✔ Multiplication.
6) Average 150 words per page, 6 pages. Total words?
→ 150 × 6 =
900 words.
✔ Multiplication.
7) A cruise ship travels at 25 miles per hour. How many hours to make a 100-mile journey?
→ Time = distance ÷ speed = 100 miles ÷ 25 mph =
4 hours.
✘ This uses
division, not multiplication.
So this is the *trick problem* — it’s not a multiplication problem.
The question says: *“Have a go at solving these multiplication problems. Can you spot the ‘trick’ problem which is not a multiplication problem?”*
So we must identify problem #7 as the trick one.
But the user just said: *“Solve the problem accurately.”* Since there are multiple problems, and the main point is to find the trick one, the expected answer is likely the identification of the trick problem (i.e., which number), or possibly the answer to that trick problem.
Looking at the layout and the cartoon saying *“Did you spot the trick problem?”*, the key task is to recognize problem 7 is the trick one.
However, the instruction says: *“Solve the problem accurately.”* — ambiguous, but since it's a worksheet titled “Multiplication Problems 5.2A”, and asks to spot the trick problem, the final answer should be the
number of the trick problem, or perhaps its answer.
But in such worksheets, the expected final answer is usually:
Problem 7, because it’s the only one not using multiplication.
Let me double-check all calculations to be safe:
1) 50 × 30 = 1500 ✔
2) 30 × 15 = 450 ✔
3) 2 × 568 = 1136 ✔
4) 4 × 2.50 = 10.00 ✔
5) 5 × 36 = 180 ✔
6) 150 × 6 = 900 ✔
7) 100 ÷ 25 = 4 → division, not multiplication ✔
Yes, only #7 is not multiplication.
So the trick problem is #7.
Final Answer:
7
Parent Tip: Review the logic above to help your child master the concept of free math worksheet for 5th grade word problems.
