Ratio Race: a ratio racing game
Find the missing number, pick the simplest form or spot the better buy to speed up your car. A free ratio race game for any device. Grades 6–7.
🧒 Kids: Tap the right answer to make your car zoom! Beat the 3 computer cars to the 🏁 flag.
How to play
- Choose the questions (missing number, simplest form, better buy, or a mix) and a speed: Easy, Medium or Hard.
- Press Start the race. A question appears under the track with two or three answers to choose from.
- Tap the right answer. Every right answer moves your car forward.
- A wrong answer stalls your engine for a moment and shows the right answer.
- 15 right answers reach the flag. Beat the three computer cars to win!
What your child practices
Three core grade 6 ratio skills, at speed. Children find a missing number in equivalent ratios (6.RP.A.3a) and write ratios in simplest form. They also compare unit prices to find the better buy (6.RP.A.3b). The wrong choices are the classic mistakes, such as adding instead of multiplying or swapping the order. The results screen lists every missed question with its answer.
Which setting to choose
| Setting | Example | Good for | Learn it first |
|---|---|---|---|
| Missing number | 6 : 9 = 10 : ? | Grade 6 | equivalent ratios |
| Simplest form | simplest form of 12 : 18 | Grade 6 | simplifying ratios |
| Better buy | 3 for $12 or 5 for $15? | Grades 6–7 | unit price and best buy |
| Mix of all three | any of the above | Grades 6–7 | ratio tables |
Start with the skill your child is learning in school. For the missing number, look for the scale factor first. For the better buy, find the price of one item in each deal.
Once your child can finish the mixed race on Medium without stalling, the basics of ratios are secure. Check with the ratio quiz, then move on to proportions.
Tips for parents
- Start on Easy with “Missing number”. Move up a speed when your child wins twice in a row.
- If “Simplest form” causes stalls, ask “what number goes into both?” before answering.
- For the better buy, say the unit price out loud: “$4 each against $3 each.”
- Your best time for each setting is saved on this device. Racing your own best is the real goal.
- Three races a day, about 5 minutes, is plenty.
In the classroom
Put it on the projector and let children call out the answer as a class. Or have them race on tablets with the same settings and compare finishing times. No logins, and no data leaves the device.
More ratio games and practice
Games: Ratio Match · Ratio Bingo · all ratio games · percent games · fraction games · all math games
Print it: the ratios worksheet and the unit rates worksheet, with answer keys, for practice away from the screen.
Practice: ratio practice · ratio calculator · ratio quiz · ratio levels
Last reviewed
Questions parents ask
How do you play Ratio Race?
Tap the right answer to move your car: find a missing number, pick the simplest form or choose the better buy. 15 correct answers reach the finish. Beat the three computer cars to win.
What ratio skills are in the race?
Equivalent ratios with a missing number, writing ratios in simplest form, and comparing unit prices to find the better buy.
Is Ratio Race free?
Yes. It is free, has no ads inside the game and needs no account.
What grade is this ratio racing game for?
Grades 6 and 7. Start with the missing number on Easy, then move to simplest form and the better buy.
Does it work on phones?
Yes. The answers are big buttons, so it works well on phones and tablets as well as computers.