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MATHEMATICAL LITERACY
GRADE 10
SCHOOL BASED ASSESSMENT
ASSIGNMENT 1
TOPIC: BASIC SKILLS
MARKS: 50
SUGGESTED TIME: 60 MINUTES
EXAMINER: Ms N. Phillips
MODERATOR: Mr W. Block
INSTRUCTIONS:
1. This question paper consists of THREE questions. Answer ALL the questions.
2. Number the answers correctly according to the number system used in this
question paper.
3. Start each question on a NEW page.
4. You may use an approved calculator (non-programmable and non-graphical),
unless stated otherwise.
5. Show ALL calculations clearly.
6. Round off all final answers appropriately.
7. Indicate units of measurement where indicated.
8. Write neatly and legibly.
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QUESTION: 1
1.1 There was one helicopter flying above the Black Sea. Its height was 1500 m. It crashed into
the sea and a body was found at 600 m deep.
Calculate the vertical distance between the height at which the helicopter was flying and the
depth at which the body was found?
(2)
1.2 Jason is solving a mathematical puzzle. He chooses the colour codes for each question
according to difficulty. The details for the colour codes are as follows:
White: 5 points
Yellow: 6 points
Orange: 8 pints
Red: 9 points
Black: 10 points
Jason has answered:
4 white, 3 yellow, 4 orange and 5 black level questions.
What is his final score?
(4)
1.3 Alice recorded the amount of liquid she has consumed for today. These are the details:
Breakfast
: 128 ml tea
After breakfast
: 225 ml coffee
Lunch
: 194 ml water
Evening
: 212 ml water
188 tea
Estimate the total amount of liquid that was consumed by Alice.
(2)
1.4 The grade 12 class at a school consists of 63 learners in the ratio of
4 boys to 5 girls.
1.4.1 Determine the number of girls in the class.
(3)
[Total: 11]
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QUESTION: 2
Look at the following receipts collected by the Zilwa family then answer the questions that follow.
2.1 Write the total car insurance to the total petrol as a ratio.
(2)
2.2 Divide the total amount spent on fruit and vegetables in the ratio 2:3
(5)
2.3 The Zilwa family’s rent increases by 7.5%. Calculate the new rent after the increase.
(3)
2.4 Round off “Pic & Pac” to the nearest 100.
(2)
2.5 Decrease the “General motor vehicle cover” with 15%.
(3)
2.6 Express the following ratio in its simplest form:
(3)
26 : 65 : 117
[Total: 18]
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QUESTION: 3
In nature there are cold-blooded animals, such as reptiles. The body temperature of
these animals depend on the temperature of the environment. However, when the environment
reaches a certain minimum temperature, and the animals are without cover, they can die. The
graph below illustrates the relationship between body temperature and environmental temperature
of cold-blooded animals.
Environmetal Temperature vs Body
Temperature of Cold-Blooded Animals
45
Body Temperature (oC
40
35
30
25
20
15
10
5
0
0
10
20
30
40
Environmental Temperature (oC)
3.1 Identify both the Dependent and Independent variables and state whether the graph is
increasing or decreasing.
(3)
3.3
Name and describe the relationship between the two variables.
(2)
3.4
Use the introduction of this question as well as the graph to explain:
3.5
3.4.1 the trend of the graph
(2)
3.4.2 why a dotted line is used to indicate the lower temperatures.
(2)
The table below also illustrates the relationship between the two variables:
Environmental Temperature (oC)
Body Temperature (oC)
10,8
A
B
29,7
35,1
C
40,2
40,2
Determine the value of:
3.6
3.5.1 A
3.5.2 B
3.5.3 C.
In the midst of the Covid-19 pandemic, measuring your body temperature,
is part of safety protocol.
(2)
(2)
(2)
3.6.1 Explain the importance of measuring your body temperature.
(2)
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3.6.2 You are also made aware of normal body temperature. Write down
this temperature.
(2)
3.6.3 When compared to reptiles, does our body temperature also change
as the environmental temperature changes? Explain your answer.
(2)
[Total: 21]
Total mark: 50
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MATHEMATICAL LITERACY
GRADE 10
SCHOOL BASED ASSESSMENT
ASSIGNMENT 1
MEMORANDUM
TOPIC: BASIC SKILLS
MARKS: 50
SUGGESTED TIME: 60 MINUTES
EXAMINER: Ms N. Phillips
MODERATOR: Mr W. Block
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Q
1.1
1.2
Solution
1500 + 600  = 2100 m 
Explanation
1 Method
1 Answer
(2)
W (5 x 4) +Y (6 x 3)+O (8 x 4) + B (10 x 5) 
20 + 18 + 32 + 50 = 120 
2 Method
2 Answer
128≈130; 225≈230; 194 ≈190 ; 212≈ 210;
188 ≈190 
130 + 230 + 190 + 210 + 190 = 950 ml 
1 Method
1 Answer
(4)
1.3
(2)
1.4
4:5 = 9 
5
∴ Girls = 9 × 63 
= 35 
1Method
1Method
1Answer
(3)
2.1
500 : 231
1 Method: Correct order
1RT : Correct values
(2)
2.2
2+3=5
2
R126 x 5  = 𝑅50,40 
3
R126 x 5  = 𝑅75,60 
2.3
Increase = R 3500 x 7,5%
= R 262,50 
New Rent = R 3500 + R 262,50
= R 3762,50 
2.4
R 1000 
2.5
R 500 x 85%  = R 425 
2.6
( 26 ∶ 65 ∶ 117 ) ÷ 13 
=2 : 5 : 9 
3.1
3.1.1
3.3
Body temperature 
Environmental temperature
Increasing 
Direct relation 
As the environmental temperature increase, the
body temperature also increases. 
1 Method: Adding correct
values
2
1 for multiplying by 5
1 CA Answer
2
1 for multiplying by 5
1 CA Answer
(5)
1 CA Answer
1 Method: Adding 7,5% to R
3500
1 CA Answer
(3)
2 Correct rounding
(2)
1 Method: calculating
1 Method: Multiplying by 85%
1 CA Answer
(3)
1 Method: HCF
2 Answer
(3)
1 Answer: Dependent variable
1 Answer: Independent variable
1 Answer
(3)
1A relation
1A description
(2)
3.4
3.4.1 An increase in the environmental temperature,
results in an increase in the body temperature of
cold-blooded animals. 
2 Answer: trend
(2)
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3.4.2 At the lower temperatures, these animals might
end up dying. 
2 Answer: conclusion
(2)
3.5
3.5.1 10,8oC 
1 Answer: temperature
3.5.2 29,7 oC 
1 Answer: temperature
3.5.3 35,1 oC 
1 Answer: temperature
(2)
(2)
(2)
3.6
3.6.1 The measurement is to verify whether our body
temperature is not too high – indicating fever,
which is one of the symptoms of the virus. 
2 Answer: explanation
(2)
3.6.2
35oC
–
38oC

2 Answer: temperature
(2)
3.6.3 No 
Our body temperature remains the same, no
matter what the environmental temperature is. 
TOTAL: 50
1 Answer: No
1 Answer: reason
(2)