This task is a fun partner game in which students practice making two-digit numbers, decide which is greater, and write the appropriate comparison symbolically.

The process of converting between different number bases is actually fairly simple, but the thinking behind it can seem a bit confusing at first. And while the topic of different bases may seem somewhat pointless to you, the rise of...

Visit Becca at her grandparents' sheep farm. There are thousands of sheep grazing around! Help Becca learn all about 4- and 5-digit numbers here.

When subtracting ten from a 2 digit number, 2nd graders should be able to compute the answer as fluently and comfortably as do when they add ten to a 2 digit number.

Practice reading and writing out the number words for large numbers.

Second graders can find patterns in 4-digit numbers that will help them when counting over decades and centuries.

Browse resources related to third-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.

Practice breaking numbers into hundreds, tens, and ones. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.

[Free Registration/Login may be required to access all resource tools.] For this learning module, students are given a set of up to seven digits and must use their understanding of place value to make the largest or smallest possible...

[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to state the decimals to the thousandths place for given locations on a number line. Includes video demonstrating a...

A bar magnet model built by placing a group of magnetic dipoles along the magnet. This simulation shows the magnetic field of a bar magnet, and has a movable compass which shows the magnetic field values.

A step-by-step tutorial showing how to add 2-digit numbers in place value columns without regrouping. Includes exercises to try. CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000

Step-by-step tutorial showing how to add 3-digit numbers in place value columns with and without regrouping. CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000

On this one page website sharpen your logic and place value skills while working on this challenge. The solution is available to double check your solution.

On this interactive site students learn to round numbers to the nearest ten thousand, determine the place value of any digit, and use ordinal numbers.

The purpose of this task is for students to reason about base-ten numbers on the number line in a way that will require them to use what they know about place value. Students first represent addition and subtraction on the number line in...

[Free Registration/Login may be required to access all resource tools.] The video shows up to the thousands place and describes how to recognize the place value of a digit in a number. The video is followed by a series of practice...

[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to give the equivalent value of a digit in two different place value positions for numbers up to 10 million. Includes...

[Free Registration/Login may be required to access all resource tools.] For this learning module, students are presented with a series of multi-digit numbers. They must use their knowledge of place value to identify the pattern, then...

This lesson will allow students to represent place values with their bodies to allow them to visualize how 1, 2, and 3 digit addition works.

This lesson plan has students exploring was to add and subtract numbers with multi-digits and place value.

Score points as you compare the value of two given decimals by choosing the correct symbol: less than, greater than, or equal.

Practice solving problems like 34+5 and 34+50.

This website explains and defines adding whole numbers and decimals. Content explores addition with regrouping and how to align numbers in a written calculation. There are even practice problems at the end of the lesson.