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Earn +20 ptsQ: When adding columns of numbers you must make certain they are?
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Continue Learning about Math & Arithmetic
How do you make od numbers?
By adding an odd number with an even number.
Can you make a square number from adding two prime numbers?
25 = 23 + 2
Which 2 prime numbers add together to make 8?
5 and 3 are two prime numbers which on adding give 8.
What are the rules for adding two prime numbers to get a prime number answer?
Make sure that one of them is 2.
How many square numbers up to 144 can you make by adding 2 prime numbers?
There are 10 of them. Only the squares of 1 and 11 cannot be made in such a way.
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