Adding and Subtracting positive and negative numbers

abbylebus
Mind Map by , created over 6 years ago

Maths (Number) Mind Map on Adding and Subtracting positive and negative numbers, created by abbylebus on 05/12/2013.

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abbylebus
Created by abbylebus over 6 years ago
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Adding and Subtracting positive and negative numbers
1 Integers are whole numbers. They can be positive or negative. Positive numbers are above zero and negative numbers are below zero.
2 Example:
2.1 The temperature at 2am was -3. By 2pm it had risen 10 degrees. What was the new temperature? -3 + 10=7 degrees
3 Adding a negative number is the same as subtracting a positive number. 6+-4 is the same as 6-4=2
4 Subtracting a negative number is the same as adding a positive number. 6 - -5 becomes 6+5=11

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