Rounding to the nearest ten

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler and easier to work with, typically by reducing the number of digits while keeping its value close to the original number.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest ten?

Back

Rounding to the nearest ten means adjusting a number to the closest multiple of ten. If the last digit is 5 or more, round up; if it is 4 or less, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 94 to the nearest ten?

Back

To round 94 to the nearest ten, look at the last digit (4). Since it is less than 5, round down to 90.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 80 to the nearest ten?

Back

To round 80 to the nearest ten, look at the last digit (0). Since it is 0, it remains 80.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 4 to the nearest ten?

Back

To round 4 to the nearest ten, look at the last digit (4). Since it is less than 5, round down to 0.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 98 to the nearest ten?

Back

To round 98 to the nearest ten, look at the last digit (8). Since it is 5 or more, round up to 100.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 55 to the nearest ten?

Back

To round 55 to the nearest ten, look at the last digit (5). Since it is 5 or more, round up to 60.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding numbers ending in 5?

Back

When rounding numbers that end in 5, round up to the next whole number or multiple (e.g., 55 rounds to 60).

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the difference between rounding up and rounding down?

Back

Rounding up increases the number to the next whole number or multiple, while rounding down decreases it to the previous whole number or multiple.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is a multiple of ten?

Back

A multiple of ten is any number that can be expressed as 10 times an integer (e.g., 10, 20, 30, etc.).