Looking at large numbers can intimidate many young mathematicians. Use Zoe's place value machine to help learners understand the meaning behind each digit in a whole number. After learning about the ones, tens, and hundreds places,...

[Free Registration/Login may be required to access all resource tools.] The video describes an example of adding three-digit numbers followed by addition vocabulary.

[Free Registration/Login may be required to access all resource tools.] The video begins with an addition vocabulary overview followed by an example of adding numbers with a sum not exceeding twenty.

[Free Registration/Login may be required to access all resource tools.] The video describes the two basic methods of adding numbers up to twenty. The methods shown are counting on and using tens and ones.

[Free Registration/Login may be required to access all resource tools.] The video begins with an addition vocabulary overview followed by an example of adding numbers with a sum not exceeding twenty.

[Free Registration/Login may be required to access all resource tools.] The video describes the two basic methods of adding numbers up to twenty. The methods shown are counting on and using tens and ones.

This video goes over how to add and subtract multiples of ten to or from a 3-digit number. [9:54]

Learn how to add and subtract multiples of a hundred when working with 3-digit numbers. [8:14]

Demonstrates how to add two 2-digit numbers, with no regrouping, using drawings of base ten cubes to represent 1s and 10s. [3:16]

[Free Registration/Login may be required to access all resource tools.] The video uses a model to describe the relationship from one whole to one thousandth written as a fraction and a decimal.

Place value helps keep numbers straight. This tutorial displays a place value chart and provides a better understanding of place value. [8:12]

This video shows how to write repeated addition as various equivalent multiplication expressions.

The concept of rounding numbers is first demonstrated using a number line. Secondly, the rounding rules are defined.

[Free Registration/Login may be required to access all resource tools.] The video uses place value to determine the number of hundreds given a specific number of ones. The video is followed by a series of practice questions to assess...

[Free Registration/Login may be required to access all resource tools.] The video uses a model to describe the relationship from one whole to one hundredth written as a fraction and a decimal.

[Free Registration/Login may be required to access all resource tools.] The video uses a model to describe the relationship from one whole to one tenth written as a fraction and a decimal.

This lesson demonstrates multiplication by the number 10. It is 1 of 12 in the series titled "Multiplying by Ten." CCSS.Math.Content.3.NBT.A.3 Multiply one-digit whole numbers by multiples of 10 in the range 10 through 90