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pchome商店街 折價券網站相關資料
Mental Math Trainer
Mental Math Trainer Choose a lowest number and a highest number, the exercise will be generated with the chosen operation(or random) and 2 random num …
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Mental Math Trainer
Train yourself to quickly answer arithmetic problems. Great for everyone from young kids just learning math, to those trying to improve their mental m …
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Mental Math Trainer
Even with ubiquitous pocket calculators good skills in mental maths can be useful. Whether you are in a supermarket or during an recruitment test, the …
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