Description: This online activity requires students to use <, >, and = to analyze addition equations.

Description: Need to practice regrouping in subtraction? Fun Regrouping in Subtraction Games from Computer Mice is the perfect solution. You can practice regrouping fluency by playing any of 15 embedded games including target practice games, ninja baby games, spinning wheel games, and many more. Look throughout our games, math, and language arts section for more games from Computer Mice soon.

Description: Need to practice regrouping in addition? Fun Regrouping in Addition Games from Computer Mice is the perfect solution. You can practice regrouping fluency by playing any of 15 embedded games including target practice games, ninja baby games, spinning wheel games, and many more. Look throughout our games, math, and language arts section for more games from Computer Mice soon.

Description: This activity features five word addition and subtraction word problems, each of which contain the number 24.

Description: This is a perfect online baseball-themed game for reinforcing number sense and estimating sums, differences, and products of four and five digit numbers. The closer your estimations, the farther your epic home runs travel!

Description: This is an amazing math-themed golf game in which the better you estimate, the more accurate your shot. Play our nine-hole course called Estimation Valley, or, go for the six-hole course or putt-putt. Classified under: math game, math games, estimation game, estimation games, addition game, addition games, multiplication game, multiplication games

Description: Think you’re good at math? Prove it to the most famous mathematical thinkers in history. In Genius Boxing, you must defeat Albert Einstein, Pythagoras, Galileo, Bill Gates, Leonardo da Vinci, Nicholas Coperniucs, Archimedes, and Sir Isaac Newton in boxing using your math skills. Look at the number equation that appears at the bottom of the screen. Click on <, >, or = to make the number equation true. Be careful though, each round gets much harder!

Description: Are you up to this addition and subtraction challenge? Welcome to the first annual all-pretzel arm wrestling tournament. Although you can’t hope to match the pure strength of the world’s best arm wrestling pretzels, you have one advantage – the strength of your pretzel-flexible arms is governed by your quick skills in addition and subtraction. Subdue your worthy opponents with your error-free calculations. Be careful though – errors you can afford to make in the first few rounds will lead to your demise in the last few rounds. Be quick —- and accurate. The calculations get harder as you move on, but you’ll have to make less of them in the later rounds.

Description: This activity requires students to regroup sets of numbers such as: four tens and 16 ones as 56.

Description: This simple video will show you how to add two-digit numbers with or without regrouping.

Description: This online activity requires students to subtract (3) big numbers. Immediate feedback is provided.

Description: This activity features six two-digit subtraction problems, each of which contain the number 24. Some of these require regrouping and some do not require regrouping.

Description: This online activity requires students to analyze the five and six-digit subtraction problems and to find the missing digit within the problem. Immediate feedback is provided.

Description: This online activity requires students to subtract four, five, and six-digit numbers. Immediate feedback is provided.

Description: Drag 'N' Drop Math is an online workshop in which students can easily complete multi-digit addition, subtraction (with regrouping), multiplication, and division problems, using big and small draggable numbers. The workshop is totally customizable and gives immediate feedback. This is one of the top ten most popular programs on mrnussbaum.com

Description: This online activity requires students to fill in the missing values in the in/out chart. Immediate feedback is given.

Description: This online activity requires students to analyze the five and six-digit addition problems and to find the missing digit within the problem. Immediate feedback is provided.

Description: This worksheet features six addition problems that contain the number 24.

Description: This online activity requires students to add a two-digit number and a one-digit number such as 24 + 8, with regrouping.. Immediate feedback is provided.

Description: This online activity requires students to add three-digit numbers. Immediate feedback is provided.

Description: Students must rename an expression such as 22 tens and 308 ones to 528. This activity gives immediate feedback.

Description: The activity requires students to rename improper mixed number such as 15 and 13/10 to 16 3/10.

Description: This activity requires students to make addition and subtraction calculations to successfully draw the correct jersey number in the jersey. Jersey numbers are those of famous male and female basketball players such as Sheryl Swoopes, Michael Jordan, Stephen Curry, LeBron James and more.

Description: This online activity requires students to add four, five, and six-digit numbers. Immediate feedback is provided.

Description: This awesome, customizable worksheet makers allows teachers to print simulated NFL matchups (such as the Steelers vs the Ravens or any two teams) that require students to use their math skills to find out the final score. Teachers can customize the operations, use multiple operations, apply grade-level appropriateness, among other things. Kids will love these! Perfect for weekend practice when your team is playing. This is mostly designed as a teacher tool to create activities for students. See instructional video for more information.

Description: Math Machine is a VISUAL tool for teaching addition, subtraction, multiplication, fractions, division, or place value. Students are empowered by spinning wheels that determine numbers in the problems! See instructional video for more information.

Description: Are you up for the Competitive Inter-School Food Fighting Championship? Your job is to lead your team of five to victory over four other schools by using your keen addition estimation skills. As you battle each school, you will notice ten addition equations. Drag and drop five equations to your teammates t-shirts that you think result in the highest sums. The five equations left over will automatically be assigned to the t-shirts of your opponents. If the total sum of the five equations on your teammates’ t-shirts is higher than the total sum of your opponents’ equations, you win and move on to face the next school. Be careful, equations get more difficult as you win.