Estimation

Front

What is estimation?

Back

Estimation is the process of finding an approximate value or number that is close to the actual amount, often used when exact calculations are not necessary.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, often to make calculations easier.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Which number would round to 60? 54, 68, 45, 55

Back

55

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

What is a reasonable estimate?

Back

A reasonable estimate is a value that is close enough to the actual amount to be useful, without needing to be exact.

Front

How do you estimate the total cost of multiple items?

Back

To estimate the total cost, round each item's price to a convenient number and then add those rounded numbers together.

Tags

CCSS.4.NBT.B.5

Front

What is the best estimate of 10,556 - 5,417?

Back

The best estimate is 6000.

Front

When estimating, should you look for the exact amount?

Back

No, when estimating, you look for a reasonable amount, not the exact amount.

Front

What is the purpose of estimation in mathematics?

Back

Estimation helps to quickly assess the size or value of a number without performing exact calculations.

Front

If a game system costs $299 and games cost between $40 and $60, what is a reasonable total estimate for the system and three games?

Back

A reasonable estimate would be around $420.

Tags

CCSS.4.NBT.B.5

Front

What is the best estimate of the total number of Aliens attending the open house if the options are 1400, 1412, 1350, 1300?

Back

The best estimate is 1400.