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1. 6 × 7 = 42
2. 7 × 9 = 63
3. 6 × 7 = 42
4. 9 × 5 = 45
5. (4 × 12) + 13 = 61
6. (6 × 8 ) + 8 = 56
7. 144 ÷ 12 ÷ 6 = 2
8. 2 001 – 17 = 1 984
9. 72 ÷ 8 = 9
10. 24 ÷ 3 = 8
11. 132 ÷ 11 = 12
12. 3 × 3 × 3 = 27
13. 96 ÷ 12 = 8
14. ( 30 ÷ 6) × 4 = 20
15. 13 × 4 × 8 × 0 = 0
TEST
1.
1.1 straight angle
1.2 obtuse angle
1.3 acute angle
2.
3.
3.1 No
3.2 Yes
4. 8 ; 8 ; 6
5. The ages of ten teachers are as follows:
23 ; 23 ; 29 ; 35 ; 41 ; 42 ; 42 ; 42 ; 47 , 53
5.1 42
5.2 41 / 42
5.3 37 ,7
6. Total number of times it took place
Total number of posibilities
7.
7.1 $\frac{7}{\text{17}}$
7.2 $\frac{7}{\text{27}}$
Let's round off the year's work with our last mental arithmetic test. Test your skill by answering the following questions as quickly and correctly as possible:
1. 6 × 7 = _____________________
2. 7 × 9 =_____________________
3. 6 × _____________________ = 42
4. _____________________ × 5 = 45
5. (4 × 12) + 13 = _____________________
6. (6 × _____________________) + 8 = 56
7. _____________________ ÷ 12 ÷ 6 = 2
8. 2 001 – 17 = _____________________
9. 72 ÷ _____________________ = 9
10. _____________________ ÷ 3 = 8
11. 132 ÷ 11 = _____________________
12. 3 × 3 × 3 = _____________________
13. 96 ÷ _____________________ = 8
14. (_____________________ ÷ 6) × 4 = 20
15. 13 × 4 × 8 × _____________________ = 0
Complete: I had _____________________ correct!
TEST
1. What kind of angles are the following?
1.1 | 1.2 | |
___________________________________ | ______________________________ | |
1.3 | ||
___________________________________ | ______________________________ |
(3)
2. Measure the following angles with your protractor:
2.1 | 2.2 | |
___________________________________ | ______________________________ |
(2)
3. Do the following figures have rotational symmetry?
3.1 | 3.2 | |
___________________________________ | ______________________________ |
(2)
4. Complete: A cube has _______________ edges; ________________ angular
points and _________________________________ faces.
(3)
5. The ages of ten teachers are as follows:
35 ; 41 ; 23 ; 42 ; 42 ; 53 ; 47 ; 42 ; 23 , 29
5.1 Determine the mode:
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(1)
5.2 Determine the median:
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(2)
5.3 Determine the arithmetical average:
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(3)
6. What “formula” is used to determine possibility?
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(2)
7.
7.1 What is the probability that I will take a green ball out of a basket with 7 green, 6 red, and 4 yellow balls?
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(1)
7.2 What is the probability that I will take a yellow Smartie from a container with
5 green, 9 blue, 7 yellow, 2 pink and 4 red Smarties?
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
(1)
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.
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