The minus sign can be omitted
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The minus sign can be omitted
The sign cannot be omitted as it determines whether the number will be negative or positive.
Not true
a is negative number.
b is negative number.
What is the sum of a+b?
Students sometimes think minus signs are just symbols that don't affect the math. But -3 and +3 are completely different numbers! One goes left on the number line, the other goes right.
You'll get the opposite answer! For example, if the correct answer is -8, dropping the minus gives +8, which is 16 units away from the right answer on the number line.
Never! Minus signs always matter in mathematics. They indicate direction, value, and sign. Even in advanced math, every minus sign has a specific purpose and meaning.
Think of minus signs as part of the number itself. Write them clearly and double-check each step. When in doubt, ask: 'Does this number go left or right on the number line?'
Great question! In , the minus is subtraction. In , it's a negative sign showing the number's value. Both are crucial and cannot be omitted!
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