Number 8
3 marks · EasyComplete the table. Write each area in the units stated. Give your answers in standard form where appropriate.
| Area | Unit | Equivalent (m²) |
|---|---|---|
| 2500 cm² | cm² | |
| 5 m² | m² | |
| 40 000 mm² | mm² |
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Must show: 0.25 m², 5 m², 0.04 m²
Also accept: 2.5 × 10^{-1} m²; 5 × 10^0 m²; 4.0 × 10^{-2} m²
Common mistakes: Not squaring conversions; Incorrect conversion factors
Show mark scheme and worked solution
Marking points
A1 · 1 mark · Correct conversion of 2500 cm² to m²: 0.25 m² (or 2.5 × 10^{-1} m²).
A2 · 1 mark · Correct statement that 5 m² = 5 m².
A3 · 1 mark · Correct conversion of 40 000 mm² to m²: 0.04 m² (or 4.0 × 10^{-2} m²).
Worked solution
| Area | Unit | Equivalent (m²) |
|---|---|---|
| 2500 cm² | cm² | 0.25 m² |
| 5 m² | m² | 5 m² |
| 40 000 mm² | mm² | 0.04 m² |