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Solve Simple Mixed Equations (1)

In this worksheet, children must solve simple one-stage equations.

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'Solve Simple Mixed Equations (1)' worksheet

Key stage:  KS 2

Year:  Year 5 11+ worksheets

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Equations and Algebra

Difficulty level:  

Worksheet Overview

When we solve algebraic equations, our aim is to end up with one letter on one side of the equals sign and one number on the other.  This is the solution.

We do this by using inverse operations to undo things that get in the way, but remember that we must do the same thing to both sides.



Solve for a

5 - a = 10



Add a to both sides.

5 - a + a = 10 + a


5 = 10 + a

Subtract 10 from both sides.

5 -10 = 10 - 10 + a


-5 = a

a = -5



5b = 20



Divide both sides by 5

5b ÷ 5 = 20 ÷ 5


b = 4



b ÷ 5 = 20



Multiply both sides by 5

b ÷ 5 x 5 = 20 x 5


b = 100

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