Practice adding positive and negative single-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice adding two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

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.

Practice solving problems like 46-9. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

The rascally gang of meerkats have escaped from their pens. Add fractions to fix the ladders and catch those 'kats! In this activity, students will focus on adding fractions, starting with single-digit denominators and working up. This...

In this lesson on addition within 100, students will learn how to compose numbers and will explore strategies to add double-digit numbers such as vertical addition, regrouping, using multiples of 10, and labeling an open number line.

Students can practice addition facts using the interactive matching games on this site.

[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.

Students practice adding four one-digit numbers. They can select the largest addend for each problem.

[Free Registration/Login may be required to access all resource tools.] The video describes how to add multiple 1-digit numbers from a word problem. The video is followed by additional practice problems.

Students add two-digit numbers with these interactive flashcards. The resource demonstrates how to carry a "1" in the tens or hundreds column.

Practice adding numbers like 45+8. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice regrouping when adding one-digit numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a 2-digit addition problem without regrouping. The video is followed by practice problems.

In this exercise, students practice breaking apart two-digit addition problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Did you know that you need to add a zero at the end of a numbers when you multiply two or more times; one zero for the tens number and two zeros for the hundreds.? Review the examples and then practices your skills with the two...

Practice adding one-digit positive and negative numbers.

In this exercise, students practice subtraction within 100. Students receive immediate feedback and have the opportunity to watch a video tutorial, get hints, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...

Improve your computation skills using this interactive worksheet. Review two digit addition and subtraction facts. This worksheet gives students immediate feedback and is a suitable tool for short assessments or independent practice.

Practice several different levels of difficulty of addition problems from single digit all the way up to 3 digit with regrouping. You can also choose single digit addition with negative numbers. When you are finished you can print your...

You can earn a million bucks playing this addition game. A succinct multiple choice game with hints, if you need them. Contains simple computation problems mixed with a few word problems. Must be able to add up to the millions place (one...

At this site from Lizard Point Consulting, you can practice several different levels of difficulty of subtraction problems that use 1-digit numbers all the way up to 3-digit number subtraction problems that require regrouping. You can...

[Free Registration/Login may be required to access all resource tools.] The video shows how to add 3, two-digit numbers followed by additional practice problems.

Practice subtracting. All numbers in these problems are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a tutorial video, or receive hints.