Vedic / Quicker / Shortcut Math ⇒ Topic : What is Negative numbers
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Kabir
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There are numerous ways to understand these. You can think of a ruler:
So for the number 2 – 5, you would start at 2, and then count down 5 until you get to -3. To add, count to the right -3 + 4 → -3, -2, -1, 0, 1 So -3 + 4 = 1. Another way to think of them is a positive number is like being in credit and negative is like being in debt. Let's look at 2 – 5 again. If you had £2 in a bank and you withdrew £5, you will be £3 in debt or 2 – 5 = -3. If you have £3 of debt and you put in a cheque for £4 then you will have £1 in the bank so -3 + 4 = 1. | ||||||||||
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