# Find the Number That Has Been Added

In this worksheet, students work out the number that has been added to another number.

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Relationships Between Operations

Difficulty level:

### QUESTION 1 of 10

In this worksheet, we must find the number which has been added.

Example

What needs to be added to change 9.799 to 9.8 ?

Answer

We use the inverse of addition (i.e. subtraction) to work this out.

9.8 - 9.799 = 0.001

What needs to be added to change 7.272 to 7.274 ?

What needs to be added to change 8.031 to 8.035 ?

What needs to be added to change 7.403 to 7.408 ?

What needs to be added to change 8.906 to 8.908 ?

What needs to be added to change 7.68 to 7.681 ?

What needs to be added to change 5.47 to 5.475 ?

What needs to be added to change 2.501 to 2.513 ?

What needs to be added to change 6.6 to 6.656 ?

What needs to be added to change 0.227 to 0.23 ?

What needs to be added to change 4.807 to 4.9 ?

• Question 1

What needs to be added to change 7.272 to 7.274 ?

CORRECT ANSWER
0.002
• Question 2

What needs to be added to change 8.031 to 8.035 ?

CORRECT ANSWER
0.004
• Question 3

What needs to be added to change 7.403 to 7.408 ?

CORRECT ANSWER
0.005
• Question 4

What needs to be added to change 8.906 to 8.908 ?

CORRECT ANSWER
0.002
• Question 5

What needs to be added to change 7.68 to 7.681 ?

CORRECT ANSWER
0.001
• Question 6

What needs to be added to change 5.47 to 5.475 ?

CORRECT ANSWER
0.005
• Question 7

What needs to be added to change 2.501 to 2.513 ?

CORRECT ANSWER
0.012
• Question 8

What needs to be added to change 6.6 to 6.656 ?

CORRECT ANSWER
0.056
• Question 9

What needs to be added to change 0.227 to 0.23 ?

CORRECT ANSWER
0.003
• Question 10

What needs to be added to change 4.807 to 4.9 ?

CORRECT ANSWER
0.093
---- OR ----

Sign up for a £1 trial so you can track and measure your child's progress on this activity.

### What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started

Start your £1 trial today.
Subscribe from £10/month.

• Tuition Partner