Units of area, review and the idea of multiplication
Answers are for parents and teachers.
1
7 dm² = ? cm²
700
2
3 m² 25 dm² = ? dm²
325
3
A rectangle is 9 cm by 3 cm. What is its area in cm²?
27
4
Replace the sum by a product and calculate: 9 + 9 + 9 + 9 = 9 × 4 = ?
36
5
630 dm² − 475 dm² = ? dm²
155