-
Introduction
View the activity introduction for more information on the topic
-
Read aloud
Read the question aloud
-
Accessibility
Open the accessibility toolbar to change fonts and contrast, choose a different language, use a ruler and more
This activity is about finding common multiples of numbers within a given range.
Example
Write down two numbers between 20 and 40 that are multiples of both 3 and 4.
Answer
The multiples of 3 are: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39... etc.
The multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52... etc.
The common multiples are the ones that appear in both lists and are shown in red.
The ones in the range between 20 and 40 are 24 and 36.
You might have seen that 12 was a common multiple of 3 and 4, but, the question asked us to find common multiples between 20 and 40.
Remember, when we see the phrase: 'Write down two numbers between 20 and 40' ... this means that neither of these numbers can be our answer.
Between means numbers that can be found within these two points.
Does that all make sense?
Then let's get started!
Question
/ 10Mr Shepherd
Do you want to skip questions and finish?
Hold up, it looks like there may be an issue with your spelling. Why not try it again?
You need to check your answer before you proceed. Are you sure you want to skip?
Teacher explanation