Estimate Decimal Sums and Differences Flashcard

Front

What is estimation in mathematics?

Back

Estimation is a method used to find an approximate value that is close to the actual value, often used for simplifying calculations.

Front

How do you estimate the sum of two decimal numbers?

Back

Round each number to the nearest whole number and then add them together.

Front

What is the estimated sum of 3.25 and 2.73?

Back

5.98

Front

How do you estimate the difference between two decimal numbers?

Back

Round each number to the nearest whole number and then subtract the smaller from the larger.

Front

What is the estimated difference between 6.84 and 4.29?

Back

2.55

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to a nearby specified value, often to make calculations easier.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

How do you round 5.67 to the nearest whole number?

Back

6

Tags

CCSS.5.NBT.A.4

Front

What is the result of subtracting 7.23 from 9.87?

Back

2.64

Tags

CCSS.5.NBT.B.7

Front

What is the estimated sum of 8.91 and 4.56?

Back

13.47

Front

What is a decimal number?

Back

A decimal number is a number that includes a decimal point, separating the whole part from the fractional part.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B