Use a double 10-frame to play a game and represent adding three single-digit numbers. Warm up with a Mystery Math Mistake to decompose teen numbers. Use a double 10-frame to represent adding three ...

DETROIT — When Beau Brieske first started playing sports, he wore the No. 22 even though his mother objected. “No,” she told him, “your number is 4.” Brieske was born on April 4, 4/4, in hospital room ...