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Estimate by Rounding
Front-end Estimation
100
605,500
What is the standard form of six hundred five thousand, five hundred?
100
225,758 > 197,210
Which number is greater? 225,758 or 197,210?
100
233,180 Count on by 1000
What is the next number in the pattern and what is the rule? 230,180 231,180 232,180
100
6,000
What is 6,321 rounded to the nearest thousand?
100
4,000 + 2,000 + 1,000 = 7,000 600 + 500 + 800 = 1,900 = 2,000 7,000 + 2,000 = 9,000
Estimate the sum of 4,615 + 2,537 + 1,828 using Front-end estimation with adjustment.
200
sixty-five thousand, one hundred forty-two
What is the word form of 65,142?
200
5,096,357 > 1,083,952
Which number is greater? 1,083,952 or 5,096,357
200
3,500
What is the least number that rounds to 4,000?
200
3,000 - 1,000 = 2,000 800 - 200 = 600 1,000 2,000 + 1,000 = 3,000
Estimate the difference using Front-end estimation with adjustment. 3,842 - 1,206
300
2,156,004
What is the standard form of two million, one hundred fifty-six thousand, four?
300
200,000
938,561 is _______________ more than 738,561.
300
835,400 Count back by 5,000
What is the next number in the pattern? What is the rule? 850,400 845,400 840,400 _______________
300
50,499
What is the greatest number that rounds to 50,000?
300
6,000 + 5,000 + 3,000 = 14,000 200 + 500 + 700 = 1400 1,000 14,000 + 1,000 = 15,000
Estimate the sum using Front-end estimation with adjustment. 6,290 + 5,500 + 3,719
400
five million, fifty thousand
What is the word form of 5,050,000?
400
100,000
4,555,230 is ___________________less than 4,655,230.
400
5,650,719 Count on by 1,000,000
What is the next number in the pattern? What is the rule? 2,650,719, 3,650,719 4,650,719 ___________________
400
6,000 + 6,000 + 4,000 _ 16,000
Round each number to the nearest thousand. Then estimate the sum. 6,290 + 5,500 + 3,719
400
3,000 - 1,000 = 2,000 800 - 200 = 600 1,000 2,000 + 1,000 = 3,000
Estimate the difference between 3,842 - 1,206? Use Front-end estimation with adjustment to find the difference.
500
nine hundred ninety-nine thousand, one hundred ninety-eight.
What is the word form of 998,198?
500
3,190,000 2,720,000 2,432,000 480,000
Order of the numbers listed below from greatest to least? 2,432,000 480,000 2,720,000 3,190,000
500
2,998,436 Count back by 1,000,000
What is the next number in the pattern? What is the rule? 6,298,436 5,198,436 4,098,436 ___________________
500
7,000
What is 7,095 rounded to the nearest thousand?
500
5,000 - 2,000 = 3,000 700 + 0 = 700 1,000 3,000 - 1,000 = 2,000
What is the difference between 5,016 - 2,770? Use Front-end estimation with adjustment to find the answer.