Sums Stacker is a sneaky educational app masquerading as a fun game for kids. And who doesn’t love sticking it to their kids?
At the bottom of the screen are three numbers. “Stacked” on top of them are things that can be added (dice, coins, numbers, Roman numerals and so on). Your kids have to make each stack add up to the number it sits on.
Why we like it:
This is a great, fun way to improve math fluency without boring drills. It’s a surprisingly different experience working with word numbers (one, two, three, or uno, dos, tres) than with cardinal numerals (1, 2, and 3).
The Roman numerals (you guessed it, I, IV, and VI) are almost freaking impossible, but it’s a fun challenge. We like the pencil sketch-style graphics too.
Like this? Get our App of the Week newsletter.
We tested version 1.0.1, which is compatible with the iPhone (OS 3.1.2 or later) and the 2nd generation iPhone touch. Developer Carstens Studios Inc. Read our disclosure policy.