Spicy Addition and Subtraction
Difficulty:
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Longer and more challenging addition and subtraction of both positive and negative numbers and decimal numbers. Remember to keep the decimal points lined up and that subtracting a negative is the same as adding.
For example
What is -9 - -14?
Subtracting a negative is the same as adding so the - - becomes a +
This becomes -9 +14
The answer is 5