Rounding to the Nearest Ten Challenge

Mrs. Marcario teaches rounding numbers to the nearest 10. She explains which numbers indicate staying or moving to the next 10. Examples include rounding 42 to 40, 57 to 60, and understanding that 60 is already rounded. The lesson concludes with rounding a three-digit number, emphasizing the role of the ones place in determining rounding direction.

Which numbers tell you to stay at the current 10 when rounding?

• 0, 1, 2, 3, 4

• 5, 6, 7, 8, 9

• 1, 2, 3, 4, 5

• 6, 7, 8, 9, 0

Which numbers give you the green light to round up to the next 10?

• 1, 2, 3, 4, 5

• 6, 7, 8, 9, 0

• 5, 6, 7, 8, 9

• 0, 1, 2, 3, 4

What is the rounded value of 42 to the nearest 10?

• 60

• 30

• 50

• 40

In the number 42, which digit is in the tens place?

• 5

• 0

• 4

• 2

What is the rounded value of 57 to the nearest 10?

• 70

• 50

• 55

• 60

In the number 57, which digit is the boss?

• 0

• 6

• 7

• 5

What should you do when rounding the number 60 to the nearest 10?

• Round down to 50

• Leave it at 60

• Round to 65

• Round up to 70

When rounding a number with a zero in the ones place, what should you do?

• Leave it as is

• Round to the nearest 5

• Round down

• Round up

What is the rounded value of 232 to the nearest 10?

• 240

• 250

• 230

• 220

In the number 232, which digit is the boss?

• 0

• 3

• 5

• 2