Round the numbers to the leading digit. Estimate the sum or difference.
3,576 → 4,000 198,248 → 200,000
+ 1,307 → +1,000 − 116,431 → − 100,000
is about → 5,000 is about → 100,000
Round the numbers to the leading digit. Estimate the sum or difference.
675 →
+ 489 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
21,481 →
− 12,500 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
7,834 →
+ 3,106 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
682,778 →
+ 130,001 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
58,499 →
− 22,135 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
902,279 →
− 615,999 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
46,801 →
+ 34,700 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
9,734 →
− 8,306 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
65,606 →
+ 85,943 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
5,218 →
− 3,673 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
745 →
+ 451 →
is about →
Round the numbers to the leading digit. Estimate the sum or difference.
337,297 →
− 168,931 →
is about →
Write < or > for each problem.
329 + 495 800
11,569 − 6,146 6,000
563 − 317 300
8,193 − 6,668 1,000
Write < or > for each problem.
41,924 − 12,445 50,000
634,577 + 192,556 800,000
18,885 + 12,691 30,000
713,096 − 321,667 400,000