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Question | Answer |
1. ? + 87 = 100 | 13 |
2. 100 - ? = 40 | 60 |
3. 67 + ? =100 | 33 |
4. The perimeter of a rectangle is 140cm. What could its sides be? | e.g. only 50 + 50 + 20 + 20 |
5. A square has a perimeter of 160cm. What do its sides measure? | 40cm |
6. A length of a square meaures 60cm. What is the perimeter of the square? | 240cm |
7. Draw a rectangle. One of its sides measures 40cm. Another of its sides measures 90cm. What is the perimeter of the rectangle? | 260cm |
8. A book has the following measurements : Length 25cm and its width 10cm. What is the perimeter of the book? | 70cm |
9. 32 + 40 + ? = 100 | 28 |
10. 6 + 7 + 20 + ? = 100 | 67 |
11. A square has a perimeter of 200cm. What do its sides measure? | 50cm |
12. Draw a rectangle. One of its sides measures 20cm. Another of its sides measures 1m. What is the perimeter of the rectangle? | 240cm/2.40m |
13. A length of a square meaures 1.2m. What is the perimeter of the square? | 4.8m/480cm |
14. A door has the following measurements : Length 250cm and its width 100cm. What is the perimeter of the door? | 700cm/7m |
15. The perimeter of a rectangle is 450cm. What could its sides be? | e.g. only 200 + 200 + 25 + 25 |
16. 100= 69 + ? | 31 |
17. 100= 76 + ? | 24 |
18. 100 - ? = 90 | 10 |
19. A pencil case has the following measurements : Length 15cm and its width 5cm. What is the perimeter of the pencil case? | 40cm |
20. 10 + 40 + ? = 100 | 50 |