Estimating

Front

What is estimating?

Back

Estimating is making a close guess about a number or amount without calculating the exact answer.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest place value, like the nearest ten or hundred.

Front

Estimate the sum: 60 + 30 = ?

Back

90

Front

What is the nearest hundred to 755?

Back

800

Front

How do you round 148 to the nearest ten?

Back

You round it to 150.

Front

How do you round 153 to the nearest ten?

Back

You round it to 150.

Front

Estimate the total: 237 + 349 + 219 = ? (Use greatest place value)

Back

700

Front

What is the sum of 3,764 + 3,851 when estimated?

Back

8,000

Front

If Becca counted 148 red cars and 153 blue cars, how many did she count when rounded to the nearest ten?

Back

She counted 300 cars.

Front

If Jasmine counted 184 white cars and 92 green cars, how many did she count when rounded to the nearest ten?

Back

She counted 300 cars.