Rounding

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. It often involves increasing or decreasing the number to the nearest specified place value.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest thousand?

Back

Rounding to the nearest thousand means adjusting a number to the closest multiple of 1,000. If the last three digits are 500 or more, round up; if they are less than 500, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 222,222 to the nearest thousand?

Back

To round 222,222 to the nearest thousand, look at the hundreds digit (2). Since it is less than 5, round down to 222,000.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding to the nearest million?

Back

When rounding to the nearest million, look at the hundred-thousands digit. If it is 500,000 or more, round up; if it is less than 500,000, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 9,778,339 to the nearest million?

Back

To round 9,778,339 to the nearest million, look at the hundred-thousands digit (7). Since it is 500,000 or more, round up to 10,000,000.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest hundred thousand?

Back

Rounding to the nearest hundred thousand means adjusting a number to the closest multiple of 100,000. If the last five digits are 500,000 or more, round up; if they are less than 500,000, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 100,003 to the nearest hundred thousand?

Back

To round 100,003 to the nearest hundred thousand, look at the ten-thousands digit (0). Since it is less than 5, round down to 100,000.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding to the nearest ten?

Back

When rounding to the nearest ten, look at the units digit. If it is 5 or more, round up; if it is less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round the number 67,396 to the nearest ten?

Back

To round 67,396 to the nearest ten, look at the units digit (6). Since it is 5 or more, round up to 67,400.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest hundred?

Back

Rounding to the nearest hundred means adjusting a number to the closest multiple of 100. If the last two digits are 50 or more, round up; if they are less than 50, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3