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Mental Skills - Mental addition
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Liver is the second book of 3 in the Life of Fred Intermediate series
Beast Academy 2A AoPS Mental Skills - Mental additionBeast Academy provides a fun, rigorous, challenging, complete curriculum for aspiring math beasts. Beast Academy Level 2A includes chapters on: Place value: Digits, ones, tens, hundreds, breaking and regrouping, adding & Subtracting 1, 10 or 100. Comparing: The Number line, distance, consecutive numbers, using < and >, ordering numbers. Addition: Sums, place value strategies, counting up, adding and taking away, doubles, making 10's and 100's,
