Estimate the sum or difference by rounding each number to the greatest place.
5,613
_. 1,392
876
+. 48
I don't know. :T
I'm sorry I'm trying to get my own help. Any good webs?
To estimate the sum or difference by rounding each number to the greatest place, you can follow these steps:
1. Identify the greatest place value common to all the numbers involved in the operation. In this case, it is the thousands place.
2. Round each number to the nearest thousand by keeping only the digits up to the thousands place and replacing the rest with zeros.
Now let's estimate the sum and difference using this method:
Estimating the sum:
1. For 5,613, the thousands place is 5, so rounding to the nearest thousand gives us 6,000.
2. For 1,392, the thousands place is 1, so rounding to the nearest thousand gives us 1,000.
Adding these rounded numbers together:
6,000 + 1,000 = 7,000
Therefore, the estimated sum is 7,000.
Estimating the difference:
1. For 876, the thousands place is 0, so rounding to the nearest thousand gives us 0.
2. For 48, the thousands place is 0, so rounding to the nearest thousand gives us 0.
Subtracting these rounded numbers:
0 - 0 = 0
Therefore, the estimated difference is 0.