1,400
between 20 and 30
800
71 + 847 = 918 165 + 72 = 237 192 + 192 = 384
Round down and round up. The answer will be between 20 (7 + 13) and 22 (8 + 14)
1,400
First, round the highest place value of each number: 400+200+700=1300 Second, round the second highest place value of each number: 390+190+740=1320 The range to estimate the sum is 1300 to 1320. The actual sum is 1321, which higher than the range. However, the actual sum may lie within the obtained range. LEF
I'm not sure about the question your asking but I'm pretty sure it's 58.92
between 20 and 30
7.000
Oh, isn't that a lovely little math problem we have here? Let's see, if we round 4.204 to 4 and 2.779 to 3, then we can estimate the sum to be around 7. It's like adding up the happy little numbers in our painting, just giving us a general idea of what the total might be. Just a little estimation to help us along our mathematical journey.
Notice that each of the three numbers is rather close to 9,000. The estimated sum is 27,000.
800
46.78-18.55 and estimate each sum or difference = 28.23
71 + 847 = 918 165 + 72 = 237 192 + 192 = 384
919
49800