Which number should you add to estimate the answer to this problem: 87087+98000
I would add 87+98 , then tag on 3 zeros.
To estimate the sum of 87087+98000, you can round each number to the nearest ten thousand. 87087 rounds to 90000 and 98000 rounds to 100000.
Next, add the rounded numbers: 90000+100000 = 190000.
Thus, you should add 190000 to estimate the answer to the problem 87087+98000.
To estimate the answer to the problem 87087 + 98000, you can round each number to the nearest ten thousand and then add them together.
The number 87087 can be rounded to the nearest ten thousand, which is 90000.
The number 98000 can also be rounded to the nearest ten thousand, which is 100000.
Then you can add these rounded numbers together:
90000 + 100000 = 190000
So, you should add 190,000 to estimate the answer to the problem 87087 + 98000.