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Earn +20 ptsQ: How is adding 20 like adding 10?
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Continue Learning about Math & Arithmetic
What is the answer to 25 plus -5?
20
Why are there no roman numerals for zero?
Because their system is based on adding numbers ob so a zero is not nessaCary it is like instead of 5+10+20+5+60=100 you write 5+0+10+0+20+0+5+0+60=100
What is the rule for adding a positive and negative number?
Adding a positive and negative number, the sum will always be negative. Example: 10+-20=-10 If you add two negatives, they cancel each other out making it positive.
Is it true if subtracting a number ending in 9 means that you move a 10?
Yes, when you subtract a number that ends in 9, you are essentially subtracting 10 and adding 1. This is because when you subtract 9 from a number, you are reducing the ones place by 9, which is the same as subtracting 10 and adding 1. For example, when you subtract 9 from 29, you are subtracting 10 and adding 1, resulting in 20.
Why is adding 20 percent like multiplying 1.20?
21.2
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