Mathematics
Measurement and time
Area
Educator section
Memorandum
1. 0,2
2. 0,32
3. 2,17
4. 59,8
5. 5 980
6. 1,984
7. 39,6
8. 9,75
9. 4 700 mm
10. 10,5 ℓ
11. 6 m
12. 7,2 ℓ
13. 1,75 kg
14. 2 918 mℓ
15. 0,017 km
Leaner section
Content
Activity: performing mental calculations [lo 1.9]
It is time to see if you can improve your skill in mental calculation! Apply the knowledge that you have already gained and note how quickly and accurately you are able to complete this mental calculation test.
1. 200 ÷ 1 000 = _________________________________________________
2. 32 ÷ 100 = ___________________________________________________
3. 217 ÷ 100 = __________________________________________________
4. 5,98 × 10 = ___________________________________________________
5. 59,8 × 100 = __________________________________________________
6. 198,4 ÷ 100 = _________________________________________________
7. Double 19,8 : __________________________________________________
8. Halve 19,5 : ___________________________________________________
9. 5 m – 300 mm = _______________________________________________
10. 12 ℓ – 1,5 ℓ = _________________________________________________
11. 3,8 m + 2,2 m = _______________________________________________
12. 2,4 ℓ × 3 = ___________________________________________________
13. of 3,5 kg = __________________________________________________
14. 2,918 ℓ = __________________________________________________ mℓ
15. 17 m = ____________________________________________________ km
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.