Add and subtract within 100 using compose, decompose, and place value strategies. Engage with a number talk to sum near-doubles using compensation. Add and subtract within 100 in more than one way.

Add and subtract three-digit numbers with Springling and Minni and Subbi. Join Mrs. McCartney for a Number Talk with D.C. and Value Pak. We'll add and subtract three-digit numbers with Springling and ...