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There are several pairs of numbers that add up to 9, including (0, 9), (1, 8), (2, 7), (3, 6), (4, 5), and their negative counterparts like (-1, 10) or (-2, 11). Additionally, you can also use three numbers, such as (2, 2, 5) or (1, 1, 7). The combinations can vary depending on how many numbers you want to include.
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Earn +20 ptsQ: What numbers add up to 9?
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What even numbers add of to 9?
No even numbers add up to 9. The sum of even numbers is always an even number.
What 2 numbers add up to -8 and multiply to -9?
1-9
What two numbers when multiplied give you -36 that add up to -9?
-45
What is the first multiple of 9 that contains all even numbers?
288. All multiples of 9 will have digits that add to a multiple of 9. To get a multiple of 9 to be all even, you need to get them to add to 18, since no set of even numbers will add up to 9. 288 is the lowest multiple of 9 to be able to add to 18. ■
What numbers go into 20 and add up to 9?
29
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