Nurul's family car is parked outside a shopping centre. Which of the following is likely to be the length of the car?
- 4.5 m
- 45 m
- 4.5 cm
- 45 cm
Need a hint?
Think about how many adult footsteps would fit along the length of the car.
Worked answer
- Use the size of a real family car to make a sensible estimate.
- A family car is a few metres long, not a few centimetres or tens of metres.
- Therefore, 4.5 m is the most reasonable length.
The mistake this question tests
Left out the units
Some pupils may choose 45 cm by confusing a full-sized car with a toy model. Others may place the decimal point wrongly and choose 45 m.
How to fix it at home →More PSLE measurement questions
Which of the following would most likely be the mass of 10 exercise books?
See the answer →Structured · 5mTank P and Tank Q are rectangular tanks
See the answer →Short answer · 2mTwo round garden rollers, each of radius 14 cm, are placed touching each other on a flat lawn, with their…
See the answer →Structured · 3mMei made some jam and filled two sizes of jars: large jars and small jars
See the answer →MCQ · 1mRavi boarded a train at 9.40 a.m
See the answer →Structured · 3mFour identical rectangles, each 7 cm long and 4 cm wide, are placed side by side, joined along their 7 cm…
See the answer →Practise PSLE measurement until the mistakes stop.
Three PSLE questions, free, no sign-up. You’ll see exactly where the marks went. Then 7 days of everything for S$4.99.