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Primary 6 Maths: Speed — Practice Paper 3
Primary 6 Maths: Speed — Practice Paper 3
Paper 3 trains average speed and time units: the three formulas first, then km/h to m/s conversion and turning minutes into hours, ending with the classic 45 minutes written as 0.45 hours error.
Quick answer 10 questions, about 20 minutes. Items 01 to 03 use the three formulas for speed, distance and speed again; items 04 to 06 convert km/h to m/s and turn 45 minutes into 0.75 hours; items 07 to 09 find an average speed for a whole trip, for two legs, and the time for 1 500 m; item 10 redos writing minutes as a decimal.
01 Paper details (check answers afterwards)
| Item | Detail |
|---|---|
| Questions | 10 questions |
| Suggested time | 20 minutes |
| Difficulty mix | Foundation 3 · Intermediate 3 · Challenge 3 · Error redo 1 |
| Chapter | Chapter: Primary 6 Maths: Speed — Tutor Lesson Plan |
| Level | Primary 6 |
02 Questions (10 items)
- FoundationMing walks 90 km in 2 hours. What is his average speed?
- FoundationA car travels at 70 km/h for 4 hours. How far does it go?
- FoundationAn athlete runs 360 m in 45 seconds. What is the speed?
- IntermediateHow many m/s is 72 km/h?
- IntermediateHow many km/h is 15 m/s?
- IntermediateA 30 km journey takes 45 minutes. What is the speed in km/h?
- ChallengeThe outward 60 km takes 1 hour and the return 60 km takes 1.5 hours. What is the average speed for the whole trip?
- ChallengeA car runs at 90 km/h for 2 hours, then at 60 km/h for 1 hour. What is the average speed?
- ChallengeRunning 1 500 m at 5 m/s takes how many minutes?
- Error redoA pupil writes 45 minutes as 0.45 hours. What is wrong, and what is the correct speed for 30 km in 45 minutes?
03 Answers and one-line notes
| # | Answer | One-line note |
|---|---|---|
| 1 | 45 km/h | Speed is distance divided by time: 90 divided by 2 is 45 km/h. |
| 2 | 280 km | Distance is speed times time: 70 x 4 = 280 km. |
| 3 | 8 m/s | 360 divided by 45 is 8 m/s. |
| 4 | 20 m/s | One m/s is 3.6 km/h, so 72 divided by 3.6 is 20. |
| 5 | 54 km/h | 15 x 3.6 = 54 km/h. |
| 6 | 40 km/h | 45 minutes is 0.75 hours, and 30 divided by 0.75 is 40 km/h. |
| 7 | 48 km/h | Total distance 120 km over 2.5 hours gives 48 km/h. |
| 8 | 80 km/h | Total distance 180 + 60 = 240 km over 3 hours gives 80 km/h. |
| 9 | 5 minutes | 1500 divided by 5 is 300 seconds, which is 5 minutes. |
| 10 | Minutes are not decimal parts: 45 minutes is 45 over 60, that is 0.75 hours, so 30 divided by 0.75 gives 40 km/h | Units must be made consistent first: divide minutes by 60 to get hours. |
04 What to do after marking
- After marking, redo only the wrong items and write down which step went wrong (formula, unit, or misread number).
- Repeat the same item two days later; move to the next paper only when both attempts are correct.
- Parents only need the answer and note columns; there is no need to explain every item.
Questions and answers are written originally by the TutorZone team and are not taken from any school, publisher or examination authority paper. Every value is checked by computer.
