# CTSC Maths Thinker – Week 12

Categories: What's on

### Grade 4 - 7

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 exploring FRACTIONS with the Grade 7 learners. Scroll through the images below for the images that link to the questions.**

1. Multiply. Write your answer as a fraction or as a whole or mixed number

2. Estimate the sum. Round each number to the nearest ten, then add.

3. Estimate the difference. Round each number to the nearest whole number, then subtract.

4. Jane’s ice cream cone stand went through 9 1/2 bags of ice in the first hour it was open and 7 2/5 bags of ice in the second hour. How much ice did it use during those two hours? Simplify your answer and write it as a fraction or as a whole or mixed number.

5. What are the missing numbers to make to following fractions equal to one another (equivalent)?

6. Write in lowest terms

7. What are the lowest common denominators for each

8. Which of the following signs needs to be used to make the statement true? >, <, =

9. What is the reciprocal of each of the following?

10. Evaluate the expression and write the answer as a fraction or as a mixed or whole number.

QUESTION IMAGES: Grade 7 THE ANSWERS: Grade 7### Grade 6

**This week we will be exploring FRACTIONS with the Grade 6 learners. Scroll through the images below for the images that link to the questions.**

1. How do you write 0,1 as a common fraction?

a. 1/10

b. 1/4

c. 1/5

d. 1/2

2. Convert 1/4 into a decimal fraction

3. Which sign makes the following statement true? (See image)

4. Write your answer to this next problem as a fraction.

12 5/7 – 1 6/7 =

5. Simplify your answer to this next problem.

4/3 + 1/9

6.1. Innocent’s drive to work is 7/10 of an hour, whereas Umr’s drive is 1/2 of an hour. How much longer is Innocent’s drive than Umr’s? Write your answer as a fraction or as a whole or mixed number

6.2. Write your answer to 6.1 as a decimal.

7. Multiply 1/9 by 5.

8. Write your answer to this next problem as a fraction.

5 4/9 x 6

9. Of the 48 learners visiting the Cape Town Science Centre, one-third brought their own lunch packs. How many students brought their own lunch packs?

10. Place the following numbers in order from smallest to largest.

0,81 81,73 8,1

11. Place the following numbers in order from Largest to smallest.

31,68 18,63 36,18

12. At the school picnic, Jessica brought 1 jug of apple juice and a second jug of orange juice to share with all her classmates. At the end of the picnic she noticed that there was 1/5 of the jug of apple juice left and 3/10 of the jug of orange juice left.

Which juice seems to be their favourite?

13. What is 70% of 40?

14. 6 is what percent of 8? Write your answer using a percentage sign.

15. In 0, 93, in which place is the 9?

QUESTION IMAGES: Grade 6 THE ANSWERS: Grade 7### Grade 5

**This week we will be exploring FRACTIONS with the Grade 5 learners. Scroll through the images below for the images that link to the questions.**

**Question 1** – Describing and ordering fractions. Choose from the list to identify the type of fractions (See Image)

**Question 2** – Equivalent fractions (See Image)

**Question 3** – Adding and subtracting fractions (See Image)

**Question 4** – Solving problems

4.1 Jamey put some water in two fish bowls. She pours 3 3/6 litres in the first bowl and 2 2/6 litres in the second bowl. How much water did she pour altogether?

4.2 Theresa had R24. She spent a 1/4 of it. How much money does she have left?

4.3 Mrs Jacobs brought 40 cookies to school. Her class ate 1/2 of the cookies and Miss Bester’s class ate 1/4 of the cookies. How many cookies are left?

4.4 Mom spent 4/5 of her money on groceries and 1/2 of the remainder on snacks. She spent R20 on snacks. How much money did Mom had at first?

QUESTION IMAGES: Grade 5 THE ANSWERS: Grade 7### Grade 4

**This week we will be exploring COMMON FRACTIONS with the Grade 4 learners. **

**Question 1** – Describing and ordering fractions

1.1 Compare and write > or < or = (See Image)

1.2 What fraction is the coloured part? (See Image)

**Question 2** – Equivalent fractions (See Image)

**Question 3** – Adding and subtracting fractions (See Image)

**Question 4** – Solving problems

4.1 Jane baked 4 pizzas for a party. She topped 21/9 pizzas with hot peppers and 5/9 of the pizza with mushrooms. She put pineapple slices on the rest of the pizza. How much of the pizza was topped with pineapple?

4.2 Bafo bought 8 hamburgers for lunch with his friends. At the end of lunch 3 hamburgers were left. What fraction of the hamburgers were eaten?

4.3 There are 7 gloves in the lost and found box. There are 2 blue gloves, 3 green gloves, 1 black glove and 1 brown glove. What fraction of the gloves are black?

4.4 Dad cut an apple pie into 10 slices. He served 4 slices to his children and 2 slices to his wife. What fractional part of the apple pie did dad serve?

QUESTION IMAGES: Grade 4 THE ANSWERS: Grade 7