Predicting the size of a product
I can explain how to use the size of one number in a multiplication to predict the size of the product.
Predicting the size of a product
I can explain how to use the size of one number in a multiplication to predict the size of the product.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- If one factor is made ___ times the size and the other factor remains the same, the product will be ___ times the size.
- When a number is multiplied by a value less than one, the product is smaller than the original number.
- When a number is multiplied by a value greater than one, the product is greater than the original number.
Keywords
Product - The product is the result of two or more numbers multiplied together.
Factor - Factors are integers that are multiplied together to get a product.
Common misconception
Children may think that multiplication always makes things larger. Children may scale incorrectly.
When a number is multiplied by a value less than 1, the product is smaller than the original number - multiplication doesn't always make things larger. Compare numbers: if one factor is made ___ times the size, the product will be ___ times the size.
Licence
Lesson video
Loading...
Starter quiz
6 Questions
0.7
0.9
7
0.07
0.09
5
6
8
11
7
81
36
1
45
63
90
900
9,000
190
1,900
0.8
0.08
1.8
0.18
1.08
Exit quiz
6 Questions
720
7,200
7.2
0
0.72
<
>
=