The Math-Whiz Fish
Who knew fish were so good at math? Scientists have discovered that cichlids and stingrays can actually add and subtract! They trained these clever fish to use colors as math symbols: if a fish sees blue shapes, it knows to "add one," and if it sees yellow shapes, it means "subtract one." The fish had to swim through a door with the correct answer to get a tasty treat. It turns out you don't need a big brain—or even a thumb—to be a math whiz! Learn more!
Wee Ones
A stingray sees 3 blue shapes. Since blue means "add one," how many shapes are on the door the fish should choose?
Little Kids
The zebra mbuna fish took 28 sessions to learn the math rules, but the stingrays took 68 sessions. Which fish learned the math rules in a smaller number of sessions?
Big Kids
It took a stingray 68 sessions to learn math. If the stingray did 10 sessions every week, how many sessions would it still have left to do after 6 weeks?
The Sky's the Limit
In their math tests, the stingrays were super smart! They got 94% of their addition problems correct. If a stingray was given 50 addition problems, how many did it get right?