# Number grids

## Lesson details

### Key learning points

1. In this lesson, we will be looking at how to write different multiples of a number using algebraic expressions.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
Which of these numbers is a common multiple of 2 and 3?
14
8
9
Q2.
What is the lowest common multiple of 4 and 5?
15
16
40
Q3.
Which of these numbers is both a multiple of 4 and a factor of 100?
16
32
80
Q4.
Which of these numbers is a multiple of a square number that is not 1?
14
15
22
Q5.
What is the lowest common multiple of 2, 3, and 5?
15
20
60

## Exit quiz

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### 5 Questions

Q1.
What is the largest prime number that is less than 60?
51
53
57
Q2.
Which algebraic expression represents multiples of 8?
5p where p is an integer
7n where m is an integer
Correct answer: 8m where m is an integer
8m where m is any number
Q3.
Why are there no prime numbers greater than 3 in the 3 times table?
Correct answer: Because every other number in the 3 times table will have 3 as a factor
Because prime numbers are in the other times tables
because there are no prime numbers greater than 3
Q4.
Which of these number can be found using the expression 5m - 1, where m is an integer
11
6
7
Q5.
Which expression can be used to represent all the following set of numbers? 3, 5, 7, 9, 11...
2n - 1 where n is an integer
Correct answer: 2n + 1 where n is an integer
4n - 1 where n is an integer
4n + 1 where n is an integer