Year 4

Using Our Maths C

Following Units 12-15

These activities bring together the different mathematical skills that your child should now know. By combining these skills in puzzles and activities your child will need to reason and think of solutions, as well as complete calculations. This will help your child to really understand the skills they are learning.

Talk through each group of questions and ask your child how they are going to solve the challenges.

It’s good to get stuck sometimes! When this happens discuss the challenge in the following order:

• What do we need to find out to solve the challenge?
• What do we know by looking at the question?
• Want could we do first?
• How would that help us?

Is there anything else we could do?

Activities:

Answers: Using Our Maths C Answers (PDF)

Sometimes we have to find an answer by trying out different ideas. You can work out the answers to these by experimenting. Do not use a calculator.
You can use multiplication or division to solve them.

1. If I divide 225 by a one digit number I get the answer 45. What is the number?
2. If I divide 128 by a one-digit number I get the answer 32. What is the number?
3. If I divide 528 by a one –digit number I get the answer 88. What is the number?
4. If I divide a three-digit number by 4 I get ahe answer 26 remainder 3. What is the number?
5. If I divide a three-digit number by 8 I get the answer 44 remainder 7. What is the number?
6. If I divide a three-digit number by 6 I get the answer 86 remainder 1. What is the number?

Finding the difference between positive and negative numbers
What is the difference between:

-7 and +7?

-7 and 0?

-14 and -7?

0 and 7?

What is the value of the digit in red in each number?

386.24

121.01

305.2

80.5

670.34

Calculate these in your head:

26.2 x 100 = ?

50.1 x 10 = ?

36.5 ÷ 10 = ?

486 ÷ 100 = ?

2.5 ÷ 10 = ?