Estimating Quotients and Product

Front

What is estimation in math?

Back

Estimation is a way to find a number that is close to the exact answer, making it easier to do calculations.

Front

What are compatible numbers?

Back

Compatible numbers are numbers that are easy to work with and help make math calculations simpler.

Front

How do you estimate a product?

Back

To estimate a product, round the numbers to the nearest ten or hundred and then multiply.

Tags

CCSS.4.NBT.B.5

Front

What is the estimated product of 36 x 69?

Back

2800

Tags

CCSS.4.NBT.B.5

Front

How do you estimate a quotient?

Back

To estimate a quotient, find compatible numbers that are close to the original numbers and then divide.

Tags

CCSS.5.NBT.B.7

Front

What is the estimated quotient of 82 students divided by 4 teachers?

Back

About 20 students per class.

Front

Which is a good estimate for 37 x 63?

Back

40 x 60 = 2400

Tags

CCSS.4.NBT.B.5

Front

Why is estimation useful in math?

Back

Estimation helps to quickly check if an answer is reasonable and simplifies calculations.

Front

What does rounding mean?

Back

Rounding means adjusting a number to the nearest ten, hundred, etc., to make it easier to work with.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is the estimated product of 50 x 60?

Back

3000

Tags

CCSS.4.NBT.B.5