Estimation of multiplying two-digit numbers

Front

Estimate 11 x 52

Back

500

Front

Is Michael's answer of 39 x 81 = 351 reasonable?

Back

No

Front

Estimate 73 x 89

Back

6300

Front

Estimate 21 x 59

Back

1200

Front

What is this multiplication strategy called?

Back

Area Model

Front

What is estimation in multiplication?

Back

A method to find an approximate value instead of an exact answer.

Front

How do you round 39 to the nearest ten?

Back

40

Front

How do you round 81 to the nearest ten?

Back

80

Front

What is the purpose of estimation?

Back

To quickly assess the size of a product without calculating it exactly.

Front

What is the area model in multiplication?

Back

A visual representation that breaks down numbers into parts to simplify multiplication.