Well-designed, well-presented
There are a lot of cheap & simple apps for drilling arithmetic or learning mental math skills.
Unlike many, this one is thoughtfully designed, has clear presentations of different strategies to learn, and integrates the strategies with practice.
It’s not just a calculator that drills you.
Just bought it. So far, it’s great!
Unlike many, this one is thoughtfully designed, has clear presentations of different strategies to learn, and integrates the strategies with practice.
It’s not just a calculator that drills you.
Just bought it. So far, it’s great!
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