Rounding Rule
Rounding It
Halfway Point
Math Detectives
100

This is the process of changing a number to the nearest ten, hundred, or thousand to make it simpler.

Rounding 

100

Round 1,245 to the nearest thousand.

1200

100

4,500 to the nearest thousand.

5,000


100

A number ends in 7. To round it to the nearest ten, you must look at this digit.

Ones

200

When rounding to the nearest thousand, if the hundreds digit is 5 or greater, you round the number to this.

To the nearest thousand 

200

6,780 to the nearest thousand.

7,000

200

Round 7,500 to the nearest thousand.

8,000

200

A number ends in 4. To round it to the nearest thousand, the detective must decide whether to round up or down. What is the answer?

Let it Rest(Down)

300

When rounding to the nearest thousand, this digit tells you whether to round up or down.

Hundreds


300

Round 29,499 to the nearest thousand.

29,000

300

What is the 16,000 halfway point?

15,500

300

A number is 8,762. To solve the mystery of rounding it to the nearest thousand, the detective must check this digit

The Mighty Hundred 

400

When rounding to the nearest thousand, if the hundreds digit is less than 5, you round the number to this.

To the lower thousand


400

12,650 to the nearest thousand.

13,000

400

Round 22,500 to the nearest thousand.

23,000

400

The number is 3,486. To crack the case of rounding it to the nearest thousand, the detective must decide: does the hundred digit send us up or down?

Down to 3,000

500

After rounding a number to the nearest thousand, all digits to the right of the thousands place change to this.

In Darold Miller Voice: ZERRO!!

500

75,999 to the nearest thousand

76,000

500

Round 48,500 to the nearest thousand.

49,000

500

The number is 164,751. To solve the final mystery, the detective must round it to the nearest thousand. What is the answer?

165,000

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