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What is the sum of 1.15 and 2.85?
It is: 1.15 plus 2.85 = 4
What is the estimate of 214 plus 182?
Since 214 is a bit over 200, and 182 is a bit below 200, you could reasonably estimate them both as being 200 and therefore the sum of the two would be approximately 400. The actual sum is 396, which is very close to 400.
What is the difference between 400 and the sum of 821 and 77?
The difference between 400 and the sum of 821 and 77 can be calculated by first finding the sum of 821 and 77, which is 898. Then, subtract 898 from 400 to find the difference. Mathematically, this can be represented as 400 - (821 + 77) = 400 - 898 = -498. Therefore, the difference between 400 and the sum of 821 and 77 is -498.
What is 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20 plus 20?
The sum of 20 added to itself 20 times is calculated by multiplying 20 by 20, resulting in 400. Therefore, the answer to the given equation is 400.
What is 400 plus 900 plus 1000?
400 + 900 + 1000 = 2300
