Spicy Addition Subtraction Long
Difficulty:
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More challenging and longer nested addition and subtraction of both positive and negative numbers. Remember to calculate the inner brackets first and that subtracting a negative is the same as adding.
Example: What is -2 + (-2 - 1) + (6 - 4)?
We do the brackets first so this becomes -2 + -3 + 2
Which simplifies to -5 + 2
Answer is -3