Rounding and Estimating Decimals

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, 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 whole number?

Back

Rounding to the nearest whole number means looking at the digit in the tenths place. If it's 5 or more, round up; if it's less than 5, round down.

Tags

CCSS.5.NBT.A.4

Front

What is 5.8 rounded to the nearest whole number?

Back

6

Tags

CCSS.5.NBT.A.4

Front

What does it mean to estimate?

Back

Estimating is making an educated guess about a number or calculation, often by rounding.

Front

Estimate the difference: 38.2 - 4.8 ≈ __

Back

33

Front

What is rounding to the nearest tens place?

Back

Rounding to the nearest tens place means looking at the digit in the ones place. If it's 5 or more, round up to the next ten; if it's less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is 56.4 rounded to the nearest tens place?

Back

60

Tags

CCSS.5.NBT.A.4

Front

What does the symbol ≈ mean?

Back

The symbol ≈ means 'approximately equal to'.

Tags

CCSS.8.NS.A.2

Front

What is rounding to the nearest hundredth place?

Back

Rounding to the nearest hundredth place means looking at the digit in the thousandths place. If it's 5 or more, round up; if it's less than 5, round down.

Tags

CCSS.5.NBT.A.4

Front

Round the decimal 3.257 to the nearest hundredth place.

Back

3.26

Tags

CCSS.5.NBT.A.4