Diaper Derby - Subtraction

Diaper Derby - Subtraction Math Game

Content Skill: Subtraction        
Common Core State Standards: CCSS.Math.Content.2.OA.B.2 - Fluently subtract within 20 using mental strategies.  By end of Grade 2, know from memory all sums of two one-digit numbers.


Ever watch a baby scoot in style?  Now - with this free online game – you can!  Customize your baby’s look before you help the baby scoot his or her way to the finish line!  Pick a fact and answer a set of problems. The faster you answer each problem, the faster your baby will scoot!  Go baby, go!  Enjoy this mad dash to learn your subtraction tables! 


Diaper Derby Step 1To begin racing your baby, click on LET'S GO.  
Diaper Derby Step 2Choose the fact family or group of fact families you would like to practice by clicking on it.  As soon as you choose the level, you will be able to customize your baby and racer.


Diaper Derby Step 3Here is where you get to customize your baby and the baby racer.  You can choose different skin color, hair styles, shirts, and what the walker looks like.  When you have the baby and the walker just the way you want, click on DONE to begin the race. 
Granny Prix Step 4The faster you enter the correct answer to the subtraction problem the faster your baby will go.  Choose your answer to the equation by clicking it at the top of the page.  You are racing against three other baby racers.  Answer the subtraction facts quickly and correctly to cross the finish line first.  Practicing the math facts is fun in this free online math game.  
Diaper Derby Step 5When you have answered enough of the subtraction facts correctly, your baby will zip across the finish line.  After the race has finished, you will be awarded 1rst, 2nd, 3rd, or 4th place.  The subtraction facts you answered wrong will be listed at the top of the page.  To start the game again, click on PLAY AGAIN.  If you like Diaper Derby, you might like some of our other fun math games like: Granny Prix and Granny Prix Multi-Player