Estimation

Front

What is estimation?

Back

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

Front

How do you estimate the total of two numbers?

Back

To estimate the total, round each number to the nearest ten or hundred, then add the rounded numbers together.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, such as the nearest ten or hundred.

Front

Round 13 to the nearest ten.

Back

10

Front

Round 28 to the nearest ten.

Back

30

Front

What is the nearest hundred to 556?

Back

600

Front

What is the nearest hundred to 1,492?

Back

1,500

Front

Round 56 to the nearest ten.

Back

60

Front

If Amy has 13 jelly beans and 28 jelly beans, how do you estimate the total?

Back

Round 13 to 10 and 28 to 30, then add: 10 + 30 = 40.

Front

If Bobby has 44 toy cars and 62 ninja turtles, how do you estimate the total?

Back

Round 44 to 40 and 62 to 60, then add: 40 + 60 = 100.