2006-08-10 17:27:29 · 4 answers · asked by caligirl10191 1 in Science & Mathematics ➔ Mathematics
It depends on what place you want to round to. Let's assume you want to round each term to the nearest hundred.
1420 rounds to 1400
5791 rounds to 5800
Then the answer is about 1400 + 5800 = 7200.
2006-08-10 17:31:03 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Kenyai is very quick.
Round off each number to two digits.
It's about 1400 + 5800 = 7200
2006-08-11 00:32:14 · answer #2 · answered by Michael M 6 · 0⤊ 0⤋
Estimate = Guess
Like just say 1400 + 5700 = 7100
2006-08-11 00:33:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
you need to round off first the numbers to the highest place value
1,420 is rounded off to the nearest thousands = 1,000
5,791 is rounded off to the nearest thousands = 6,000
add them, you get the estimted sum of 7, 000
to round off, look the the place value being rounded off, then look to the right of that number. if the number is 0 to 4, you round down. meaning that nothing will change to the place value being rounded off, copy it and then add the zeros. if the number to the right is 5 to 9, then round up. meaning you add one to the place value being rounded off and then add the zeros :)
2006-08-11 00:37:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋