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Adding or Subtracting 1000: Add or Subtract with Four-Digit Numbers

In this worksheet, students must add 1000 or subtract 1000 from, a four-digit number.

'Adding or Subtracting 1000: Add or Subtract with Four-Digit Numbers' worksheet

Key stage:  KS 2

Year:  Year 4 Maths worksheets

Curriculum topic:   Number: Number and Place Value

Curriculum subtopic:   Find 1000 More or Less than a Given Number

Popular topics:   Subtraction worksheets, Addition worksheets

Difficulty level:  

Worksheet Overview

When we add 1000 to a 4-digit number, we must increase the digit in the Thousands column by 1.

Here is the number 1623 shown on a Thousands Hundreds Tens Ones abacus.

*Notice how the abacus says units. Units are another word for ones. 

  

Abacus

 

When we add 1000 we add an extra number to the Thousands column.

 

Abacus

 

1623 + 1000 = 2623

 

Example

Add 1000 to:

5028

 

Answer

We increase the 5 in the Thousands column by 1 to get 6 in that column.

5028 + 1000 = 6028

 

 

When we subtract 1000 from a 4-digit number, we must decrease the digit in the Thousands column by 1.

Here is the number 4705 shown on a Thousands Hundreds Tens Ones abacus.

  

Abacus

 

When we subtract 1000 from it, we take away one number from the Thousands column.

 

Abacus

 

4705 - 1000 = 3705

 

Example 1

Subtract 1000 from:

5097

 

Answer

We decrease the 5 in the Thousands column by 1 to get 4 in that column.

5097 - 1000 = 4097

 

Example 2

Subtract 1000 from:

1060

 

Answer

We decrease the 1 in the Thousands column by 1 to get 0 in that column.

Remember to leave off any zeros on the left hand side of a number.

1060 - 1000 = 0060 = 60

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