RTSD

Numeration and Counting: saying, reading, and writing numbers; place value; whole numbers; fractions; and decimals Operations and Relations: facts and operation families (fact families 12+3=15, 3+12=15, 15-3=12, 15-12=3) Problem Solving and Number Models: mental and written math, along with number puzzles, brain teasers, and real-life math ... ................
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