3rd Grade Rounding Review

Front

What is rounding?

Back

Rounding is the process of adjusting a number to make it simpler and easier to work with, usually to the nearest ten, hundred, or other place value.

Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or more, round up. If it is 4 or less, round down.

Front

What is the nearest ten for the number 27?

Back

30

Front

What is the nearest ten for the number 44?

Back

40

Front

What is the nearest ten for the number 18?

Back

20

Front

What is the total length of 27, 44, and 18 rounded to the nearest ten?

Back

90 inches

Front

What is the best estimate for 39 blue marbles and 483 red marbles rounded to the nearest ten?

Back

520 marbles

Front

What is expanded form?

Back

Expanded form is a way of writing numbers that shows the value of each digit. For example, 63,824 in expanded form is 60,000 + 3,000 + 800 + 20 + 4.

Front

What is the expanded form of 63,824?

Back

60,000 + 3,000 + 800 + 20 + 4

Front

How do you add two numbers together?

Back

To add two numbers, line them up by place value and add each column starting from the right, carrying over if necessary.