Add and Subtract Positive and Negative Numbers

In this worksheet, students carry out addition and subtraction of positive and negative numbers.

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Four Operations for All Numbers

Difficulty level:

QUESTION 1 of 10

In this worksheet, we will be adding and subtracting positive and negative numbers

 Use the number ladder to help you answer the questions. Remember, for a positive number, move up the ladder. For a negative number, move down the ladder. Always begin at 0. Examples 1) 3 - 5.     Start at 0, move up 3 spaces then down 5 spaces.     Answer: -2.      2) -4 - 3.     Start at 0, move down 4 spaces then down 3 spaces.     Answer: - 7.

Work out:

1 - 7 + 5 = ________

Work out:

2 - 3 + 4 = ________

Work out:

-7 - 2 = ________

Work out:

4 - 7 + 3 = ________

Work out:

-7 + 4 + 5 = ________

Work out:

-9 + 1 - 2 = ________

Work out:

-9 - 9 = ________

Work out:

7 - 1 - 10 = ________

Work out:

-2 + 8 + 6 - 5 =  ________

Work out:

50 - 50 -50 -50 = ________

• Question 1

Work out:

1 - 7 + 5 = ________

-1
• Question 2

Work out:

2 - 3 + 4 = ________

3
• Question 3

Work out:

-7 - 2 = ________

-9
• Question 4

Work out:

4 - 7 + 3 = ________

0
• Question 5

Work out:

-7 + 4 + 5 = ________

2
• Question 6

Work out:

-9 + 1 - 2 = ________

-10
• Question 7

Work out:

-9 - 9 = ________

-18
• Question 8

Work out:

7 - 1 - 10 = ________

-4
• Question 9

Work out:

-2 + 8 + 6 - 5 =  ________

7
• Question 10

Work out:

50 - 50 -50 -50 = ________

-100
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