Addition Quiz/Game
The best way to get good at addition is to do it often. This Addition Game is an interactive and engaging web-based application designed to help you practice and improve your skills and mental math.
 
This is an interactive game to help students practice addition. To adjust the difficulty level, you can indicate the maximum sum that you want to practice. If you get an answer wrong, the game will show you the correct solution. The game has an optional 60-second timer, encouraging players to solve the problems quickly and efficiently.
 

 

How to Play the Addition Game
This game is designed to help you practice addition. Start with a smaller sum and increase it to adjust the difficulty level.
Here’s how to play:

1. Biggest Sum: Enter the maximum sum that you want to practice.
   
2. Timed Option: Check the timer if you want to enable the 60 second timer. Click “Start Game”.
   
3. Look at the Problem: You will be given two numbers. Add them.
   
4. Enter Your Answer: Enter in the result.
   
5. Check Your Work: Click the Check button (or press the Enter key). The game will tell you if you’re correct. If you are wrong, you will be shown the correct answer.
   
6. Get a New Problem: Click the Next button for a new problem.
   Your score is tracked at the top, showing how many you’ve gotten right out of the total you’ve tried.
   
7. Back to Menu Click “Back to Menu” to restart the game.
    
   

Strategies for Mental Addition
Learning to add in your head is a powerful skill that can make math much faster and more intuitive. Instead of counting on your fingers, you’ll learn to see the relationships between numbers to quickly find the answer.
 

1. Counting Strategies
   Counting On
   Start with the largest number and count the remaining numbers to reach the sum. For example, to solve 5 + 3, start at 5 and count: 6, 7, 8.
   Counting by Tens and Ones
   Add the tens first, then add the ones. For 148 + 36, add the 30 from 36 to 148 to get 178, then add the remaining 6 to get 184.
    
   
2. Partitioning/Decomposition Strategies
   Split Strategy (Partitioning)
   Break each number into its tens and ones and add the components separately. For example, 46 + 23 becomes 40 + 20 + 6 + 3, which is then added to 60 + 9 = 69.
   Add in Parts
   Break one number into parts to reach an easier sum. To add 24 + 52, think of 52 as 50 and 2. Add 20 and 50 to get 70, then add the remaining 4 and 2 to get 6, for a total of 76.
    
   
3. Adjustment Strategies
   Make to the Next Ten
   Adjust one number to reach the next easy multiple of ten, then adjust the total. To add 48 + 24, add 2 to 48 to make 50. Add the 24 to the 50 to get 74, then adjust for the 2 you added earlier, so 74 - 2 = 72.
   Compensation (Rounding)
   Round one or both numbers to a nearby multiple of 10 to make the addition simpler. For 37 + 58, add 2 to 37 to make 39 (for an easy 40), add 58 to 37 to get 95, and then add the 2 back to your answer.
    
   
4. Using Known Facts
   Doubles and Near Doubles
   Use known doubles facts to solve problems involving numbers close to each other. For 14 + 15, know that double 14 is 28, so 15 must be one more than 28.
   Compatible Numbers
   Use numbers that are easy to add or subtract, such as numbers that add to make a ten.
    
   By practicing these strategies, you will build the “number sense” that allows you to solve problems quickly in your head. The addition game is a great place to practice these mental tricks until they become second nature.
    
   

The video gives a clear, step-by-step approach to walk through the process of mental addition with 100.

• Show Video

 

Free Addition Games
One More, One Less	1-Digit Addition	Addition (Maximum Sum)
Add Doubles	Number Bonds (Missing Addend)	Add 3 or more single digits
Fixed Addend	Understand the Equal Sign	Fact Families Game
2-digit + 1-Digit (no regrouping)	2-Digit + 2-Digit (no regrouping)	Add Multiples of 10
2-digit + 1-digit Column Addition	2-digit Column Addition
3-digit + 2-digit Column Addition	3-digit Column Addition
2-digit + 1-digit (with regrouping)	2-Digit + 2-Digit (with regrouping)	3-Digit Addition

 

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