Big Ideas chapter 3 review

Front

What is place value?

Back

Place value is the value of a digit based on its position in a number. For example, in the number 23, the 2 is in the tens place and represents 20, while the 3 is in the ones place and represents 3.

Front

How do you break apart an addend using place value?

Back

You can break apart an addend by separating it into its tens and ones. For example, in 44, you can break it into 40 (tens) and 4 (ones).

Front

What is the sum of 23 and 44?

Back

The sum of 23 and 44 is 67.

Front

What is the sum of 52 and 26?

Back

The sum of 52 and 26 is 78.

Front

If you have 49 stickers and your friend gives you some more to make 79, how many stickers did your friend give you?

Back

Your friend gave you 30 stickers.

Front

How do you use an open number line to add numbers?

Back

You can use an open number line by starting at the first number and making jumps to add the second number. For example, to add 18 and 62, you can jump 60 first and then 2.

Front

What is the sum of 18 and 62 using an open number line?

Back

The sum of 18 and 62 is 80.

Front

What is the sum of 38 and 40?

Back

The sum of 38 and 40 is 78.

Front

What is an addend?

Back

An addend is a number that is added to another number in an addition problem.

Front

What is a sum?

Back

A sum is the result of adding two or more numbers together.