Mathematics
Measurement and time
Volume
Educator section
Memorandum
1. 100
2. 10 000
3. 4
4. 8
5. 27
6. 125
7. 9
8. 4
9. 2
10. 20
11. 9
12. 3
13. 7
14. 100 + 100 000 = 100 100
15. 22
Leaner section
Content
Activity: to perform mental calculations [lo 1.9]
By this time you should be quite bright and quick when working with numbers. Let's see how you perform in the next mental calculation test! Try to complete it within three minutes:
1. 102 = ______________________
2. 104 = ______________________
3. 22 = ______________________
4. 23 = ______________________
5. 33 = ______________________
6. 53 = ______________________
7. ______________________2 = 81
8. ______________________.3 = 64
9. 3 × 5 × ______________________ = 30
10. 0,3 × 5 × ______________________ = 30
11. 3 × ______________________ = 27
12. 3______________________ = 27
13. 102 × 105 = 10______________________
14. 102 + 105 = ______________________
15. 29 × 22 = (30 × 22) – __________________
Assessment
Learning Outcome 1: The learner will be able to recognise, describe and represent numbers and their relationships, and to count, estimate, calculate and check with competence and confidence in solving problems.
Assessment Standard 1.9: We know this when the learner performs mental calculations.