# CTSC Maths Thinker – Week 5

18 - 22 May

Take our daily marvellous Primary School Maths Thinker to sharpen your mind and enhance your skills. Find curriculum-aligned maths questions to help your child explore essential concepts. Daily questions will be posted Monday to Thursday for Grade 4 – 7 respectively. Look out for the solutions to these questions every Friday (all grades). The CTSC Education Team will be standing by should you have any questions – please reach out by posting any questions on our Facebook or Instagram page in the comments section. #CTSCMaths

### Grade 7

This week we will be taking a look at SPACE & SHAPE for Grade 7 learners. Scroll through the images for the questions and images linked to the questions.

Question 1 (See Image)
Find the correct shape from the 3 possibilities

Question 2 (See Image)
2.1 Which shape is a nonagon?
2.2 Which shape is not a quadrilateral?
2.3 Which of these shapes has a single line of symmetry
2.4 How many angles does a decagon have?

Question 3 (See Image)
3.1 Which angle is a right angle?
3.2 Which lines are not perpendicular?
3.3 Which is the obtuse angle?
3.4 How many angles do all irregular quadrilaterals have?

Question 4
Give the definitions of each of the following shapes and draw an example of each one.
4.1 equilateral triangle
4.2 isosceles triangle
4.3 scalene triangle
4.4 right-angled triangle
4.5 parallel
4.6 perpendicular

### Grade 6

This week we will be taking a look at MEASUREMENT for Grade 6 learners. Scroll through the images for the questions and images linked to the questions.

QUESTION 1 (See Image)
1.1 How many cans are needed to fill the saucepan?
1.2 Busi used a full jug of water to fill the saucepan. How much water was left in the jug?
1.3 Tebogo used 15 cans to fill up the jug. Will it be enough? If not how many more cans are needed to fill the jug?
1.4 What is the capacity if we added all the quantities together?

QUESTION 2 – Complete the crossword puzzle (See Image)
DOWN
1. Capacity is measured in ____?
2. We use hours and minutes to measure ____.
3. 12 months are the same as 1 ______.
4. The pocket of potatoes weighed 10 ______.
5. The 100 m sprint race took 15 _____ to run.
6. 12 midday is called _____.

ACROSS
1. Water ____ at 100ᵒC.
2. 1000 kg = to 1 _____.
3. The capacity of the water tank was at 0 litres that means it was _____.
4. Jane cut the string 700 cm, it is the same as 7 _____.
5. When we use a scale we measure the _____ of an object.
6. The size of your pencil can be measured in ____.

QUESTION 3
Convert the given measurements of mass to new units
3.1 5 kg = _____ g
3.2 70 mg = _____ g
3.3 3000 kg = _____ ton
3.4 6000 g = _____ kg

QUESTION 4
Solve the length word problems
4.1 There are two trees in the park. The tallest tree is 10 meters. The shorter tree is 1.5 meters shorter than half the height of the taller tree. What is the height of the shorter tree?

4.2 The distance that Siyanda must travel to and from work is 35 km each way. How many kilometres does she travel in total during a working week?

4.3 Each parking spot is 200 cm wide. A parking lot has 24 parking spots side by side. What is the width, measured in meters, of the parking lot?

### Grade 5

This week we will be taking a look at MEASUREMENT for Grade 5 learners. Scroll through the images for the questions and images linked to the questions.

Mixed unit conversion – Convert into given units of measurement
Question 1
1.1 340 m = _______ cm
1.2 2 litres = _______ ml
1.3 3500 g = _______ kg
1.4 10 cm = ________ mm

Question 2
2.1 – 2.6 Write down the units of measurement (See image)
2.7 – 2.9 Write measurements in centimetres and millimetres (See image)

Question 3
Sort the objects into the best column according to the mass/weight (See image)

Question 4
Solve the following word problems
4.1 Jamey is packing to move to another apartment. She packed 24 boxes and each box can hold 4 kg. The trolley she is using to move the boxes can take up to 32kg. How many trips does it take her if she only has one trolley?

4.2 Before a party Zikhona bought a tray of 24 water bottles: each bottle has a capacity of 500ml. There are 50 guests and each quest drinks 1 cup of water, is there enough water for all the guests?

4.3 50 cm of ribbon is needed for wrapping each present. How many presents can be wrapped with 10 meters of ribbon?

### This week we will be taking a look at MEASUREMENT. Scroll through the images for the questions and images linked to the questions.

QUESTION 1: LENGTH
1.1 Which unit would you use to measure the length of an ant?
• Millimetres
• Centimetres
• Meters
• Kilometres

1.2 Which unit would you use to measure the distance between Cape Town and Durban?
• Millimetres
• Centimetres
• Meters
• Kilometres

1.3 Which unit would you use to measure the height of your school building?
• Millimetres
• Centimetres
• Meters
• Kilometres

1.4 Which unit would you use to measure the length of your arm?
• Millimetres
• Centimetres
• Meters
• Kilometres

QUESTION 2: MASS
Question 2.1 Arrange these objects in the order of mass – lightest to heaviest. (See image)

Question 2.2
(a) A young elephant weighs 980kg and a young hippopotamus weighs 601kg. How much heavier is the elephant than the hippopotamus?

(b) An apple weighs 117g and a pineapple weighs 983g. What is the difference in weight between the apple and the pineapple?

(c) How heavy is the weight?
● 450g
● 900g
● 2000g
● 1000g

d) What is the total weight of the dumbbells together? (See image)

QUESTION 3: VOLUME (CAPACITY)
3.1 Bafo mixed 2 litres of orange juice, 3 bottles of 500ml of soda water and 6 cans of 350ml of cocktail fruits for the New Year’s party. How much of fruit punch did Josh make?

3.2 At the carwash Umr washed 5 cars and used 9 buckets of water. Each bucket holds 5 litres of water. How many litres of water have they used altogether?

3.3 A person is supposed to drink 2 litres of water a day. Jane-Claire drank 5 glasses of water today. If the capacity of the glass is 250ml, how much more water does Jane-Claire need to drink today?