Students add and subtract a one-digit number to and from a two-digit number (RTP 2AS–3), including crossing tens boundaries using the make-ten strategy at scale (47 + 6 = 47 + 3 + 3).
Intermediate Level
Students add and subtract a one-digit number to and from a two-digit number (RTP 2AS–3), including crossing tens boundaries using the make-ten strategy at scale (47 + 6 = 47 + 3 + 3).




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