Problem 1
A movie starts at 4:25 pm and lasts 70 minutes. What time does it end?
Answer: 6:35 pm
- Add the minutes to 4:25 pm.
- 25 + 70 = 95 minutes, which is 1 hour and 35 minutes.
- So the ending time is 6:35 pm.
How to explain it: Elapsed time gets easier when children jump in chunks to the next hour instead of trying to do it all at once.
Problem 2
A child has $20.00 and buys a toy for $5.30 and a snack for $3.40. How much money is left?
Answer: $11.30
- Add the cost of the toy and snack: $5.30 + $3.40 = $8.70.
- Subtract from $20.00.
- The money left is $11.30.
How to explain it: Time and money problems often become clearer when the child writes a mini receipt first.
Problem 3
A train leaves at 8:40 am and arrives 60 minutes later. What time does it arrive?
Answer: 9:40 am
- Start at 8:40 am.
- Add 60 minutes.
- The train arrives at 9:40 am.
How to explain it: For elapsed time, it helps to count to the next full hour first, then add what remains.
Problem 4
A parent buys 4 tickets at $6.50 each. What is the total cost?
Answer: $26.00
- Each ticket costs $6.50.
- There are 4 equal ticket prices.
- Multiply: 4 × $6.50 = $26.00.
How to explain it: Money word problems are a good place to connect multiplication with real shopping situations.
Problem 5
A lesson begins at 2:15 pm and ends at 3:05 pm. How many minutes long is the lesson?
Answer: 50 minutes
- Count from 2:15 to 3:00 = 45 minutes.
- Then add 5 more minutes to 3:05.
- The lesson lasts 50 minutes.
How to explain it: Children often do better by bridging to the next hour rather than trying to subtract times directly.
Problem 6
A family budget allows $50.00 for a day trip. Parking costs $12.00, lunch costs $18.50, and tickets cost $13.50. Do they stay within budget?
Answer: Yes, they have $6.00 left
- Add the costs: $12.00 + $18.50 + $13.50 = $44.00.
- Compare with the budget of $50.00.
- They are within budget and have $6.00 left.
How to explain it: Budget questions are useful because they naturally ask children to total costs and compare them to a limit.
Problem 7
A child starts homework at 5:35 pm, works for 25 minutes, takes a 10-minute break, then works for another 20 minutes. What time does the child finish?
Answer: 6:30 pm
- Add the working and break times: 25 + 10 + 20 = 55 minutes.
- Start from 5:35 pm and add 55 minutes.
- The finishing time is 6:30 pm.
How to explain it: This is a good example of combining chunks of time before placing them on the clock.
Problem 8
A student buys 4 pens for $2.25 each and 2 folders for $3.50 each. What is the total cost?
Answer: $16.00
- Pens: 4 × $2.25 = $9.00.
- Folders: 2 × $3.50 = $7.00.
- Add them: $9.00 + $7.00 = $16.00.
How to explain it: A simple item-by-item table helps children stay organised in mixed money questions.
Problem 9
A bus ride takes 40 minutes each way. If a family goes to the museum and comes back the same day, how many minutes do they spend on the bus altogether?
Answer: 80 minutes
- One trip is 40 minutes.
- There are two equal trips, so multiply by 2.
- Total bus time: 2 × 40 = 80 minutes.
How to explain it: Round-trip questions often hide multiplication inside ordinary time stories.
Problem 10
A shop opens at 9:00 am and closes at 5:30 pm. If the busiest period is from 11:45 am to 2:15 pm, how long is that busiest period?
Answer: 2 hours 30 minutes
- From 11:45 am to 12:45 pm is 1 hour.
- From 12:45 pm to 1:45 pm is another hour.
- From 1:45 pm to 2:15 pm is 30 minutes.
- Total busiest time is 2 hours 30 minutes.
How to explain it: Elapsed time gets much easier when children chunk it into clean hour jumps first.