# Work Out the Product and Sum of Numbers

In this worksheet, students will select and find numbers whose product and sum are both given.

Key stage:  KS 2

Curriculum topic:   Number: Multiplication and Division

Curriculum subtopic:   Solve Multiplication/Division Problems

Popular topics:   Ratio worksheets

Difficulty level:

#### Worksheet Overview

This activity is about sums and products.

A sum is an addition. The sum of 12 and 3 is 15.

A product is a multiplication. The product of 12 and 3 is 36.

Example

Find two numbers whose product is 30 and sum is 11.

We look at the factor pairs of 30 first.

1 and 30

2 and 15

3 and 10

5 and 6

Then we select the pair whose sum is 11.

It can look a bit daunting, but the key to it is to start with those factor pairs.

Let's get started and remember that you can look back at this introduction at any  point by clicking on the red help button on the screen.

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