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Find the Missing Numbers in Equations

In this worksheet, students will develop their algebra skills by finding the missing numbers in the given equations.

'Find the Missing Numbers in Equations' worksheet

Key stage:  KS 2

Year:  Year 6 Maths worksheets

Curriculum topic:   Algebra

Curriculum subtopic:   Express Problems Algebraically

Popular topics:   Algebra worksheets

Difficulty level:  

Worksheet Overview

In this activity, we will be finding the missing numbers in equations.


In algebra, we use a letter to represent the unknown number.


1 + x = 4     x =

To solve, we use the inverse of addition, which is subtraction, to get x on its own.

(in other words, to isolate x!)

x = 4 - 1

x = 3


4y = 24     y =


To solve, use the inverse of multiplication, which is division, to get y on its own

(in other words, to isolate y!)

y = 24 ÷ 4 

y = 6


Let's practise this in some questions.


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