Decimal 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.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What does it mean to round to the nearest tenth?

Back

Rounding to the nearest tenth means looking at the hundredths place to decide whether to round the tenths place up or keep it the same.

Tags

CCSS.5.NBT.A.4

Front

How do you round 5.592 to the nearest hundredth?

Back

Look at the third decimal place (2). Since it is less than 5, keep the second decimal place (9) the same. The answer is 5.59.

Tags

CCSS.5.NBT.A.4

Front

What is the rule for rounding up?

Back

If the digit in the place immediately to the right of the rounding place is 5 or greater, round up.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the rule for rounding down?

Back

If the digit in the place immediately to the right of the rounding place is less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Round 123.496 to the nearest tenth.

Back

The answer is 123.5.

Tags

CCSS.5.NBT.A.4

Front

What is the nearest hundredth of 18.888?

Back

The answer is 18.89.

Tags

CCSS.5.NBT.A.4

Front

How do you round 10.065 to the nearest tenth?

Back

Look at the hundredths place (6). Since it is 5 or greater, round the tenths place (0) up to 1. The answer is 10.1.

Tags

CCSS.5.NBT.A.4

Front

Which decimal rounds to 7.8 when rounded to the nearest tenth?

Back

The answer is 7.81.

Tags

CCSS.5.NBT.A.4

Front

What is the difference between rounding to the nearest tenth and rounding to the nearest hundredth?

Back

Rounding to the nearest tenth focuses on the first decimal place, while rounding to the nearest hundredth focuses on the second decimal place.

Tags

CCSS.5.NBT.A.4