Estimating Products

Front

What is estimating products?

Back

Estimating products means finding a close approximation of the result of a multiplication problem without calculating the exact answer.

Tags

CCSS.4.NBT.B.5

Front

How do you estimate the product of two numbers?

Back

Round each number to a more manageable figure, then multiply the rounded numbers.

Tags

CCSS.4.NBT.B.5

Front

Estimate the product: 272 x 5

Back

1,500

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CCSS.4.NBT.B.5

Front

Do single digit numbers get rounded?

Back

No

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CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

Front

If plane tickets cost $560 each, how would you estimate the cost of 4 tickets?

Back

600 x 4

Tags

CCSS.4.NBT.B.5

Front

Estimate the product: 58 x 3

Back

60 x 3

Tags

CCSS.4.NBT.B.5

Front

Estimate the product: 6,987 x 6

Back

42,000

Tags

CCSS.4.NBT.B.5

Front

What is rounding?

Back

Rounding is adjusting a number to the nearest place value to make it easier to work with.

Tags

CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

Front

When estimating, why do we round numbers?

Back

We round numbers to simplify calculations and make it easier to find an approximate answer.

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CCSS.4.NBT.A.3

CCSS.3.NBT.A.1

Front

What is the estimated product of 50 x 10?

Back

500

Tags

CCSS.4.NBT.B.5