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Earn +20 ptsQ: What is the middle of 9 and 21?
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What is in the middle of 9 and 12?
The number that lies in the middle of 9 and 12 is 10.5. This is calculated by adding 9 and 12 together to get 21, and then dividing by 2 to find the average, which is 10.5. In a number line, 10.5 would be equidistant from both 9 and 12.
Solve a plus 9 equals 21?
A + 9 = 21 A = 21 - 9 A = 12
What is 21 times 9?
21 * 9 = 189
What is 21-9?
21-9 = 12
What is 189divided by 9?
21
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