2-Digit Estimating Products

Front

What is estimating in multiplication?

Back

Estimating in multiplication means finding a close value to the actual product by rounding the numbers before multiplying.

Tags

CCSS.4.NBT.B.5

Front

Estimate the product of 62 X 3.

Back

180

Tags

CCSS.4.NBT.B.5

Front

What is the best way to estimate 62 x 23?

Back

Use 60 x 20 for estimation.

Tags

CCSS.4.NBT.B.5

Front

Estimate the product of 99 X 7.

Back

700

Tags

CCSS.4.NBT.B.5

Front

How do you round numbers for estimation?

Back

To round numbers, look at the digit to the right of the place you are rounding to. If it's 5 or more, round up; if it's less than 5, round down.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

ROUND to estimate: 25 x 81

Back

2,400

Tags

CCSS.4.NBT.B.5

Front

ROUND to estimate: 39 x 37

Back

1,600

Tags

CCSS.4.NBT.B.5

Front

What is the purpose of rounding in estimation?

Back

Rounding simplifies calculations and helps to quickly find an approximate answer.

Tags

CCSS.5.NBT.B.7

Front

What is a product in multiplication?

Back

A product is the result of multiplying two or more numbers together.

Tags

CCSS.3.OA.A.1

Front

What is the estimated product of 60 x 30?

Back

1,800

Tags

CCSS.4.NBT.B.5