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

[Free Registration/Login may be required to access all resource tools.] The video shows how to add and subtract three digit numbers to determine which number sentence matches the correct solution. The video is followed by a series of...

Practice your two-digit place value skills here. Just press the "go" button and find the number on the right that is represented by the base ten blocks on the left.

Practice adding two-digit numbers. All numbers in these problems are 100 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students are given word problems where they have to add or subtract 3 or more 1-digit numbers.

Create customized decimal subtraction worksheets. Choose from basic facts to four-digit by four-digit questions. The size of problem set can be selected, as well as whether the format will be vertical or horizontal. An answer key can...

Select a problem set, then select a question. Fill in the blank with the correct answer for each problem. When you have answered all of the questions, ask Charlie how you did.

Caleb works in a movie theater. Can you help him serve foods and beverages to the customers?

On this interactive website students practice various math skills using a real life scenario on a fishing boat. Those skills include counting forwards by tens, reading three-digit numbers, and producing a three-digit number using base...

You are on a trip and need to cross a bridge, but you have to pay tolls in coins. Solve this puzzle by making your way to the island only using 100 coins.

Practice adding and subtracting numbers like 554 and 237 using a number line. All numbers are less than 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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...

In this exercise, students practice adding 1s or 10s (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Practice solving problems like 34+5 and 34+50. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

A jeopardy game where students practice finding the sum of two numbers. Each number will have one to four digits where the more digits that are in the problem, the more points the correct answer is worth.

This resource is a jeopardy game where students select questions where they have to determine the two numbers that create the given sum. The sum is a range of 2, 3, 4, and 5 digit numbers. The answers are multiple choice, and students...