TWO fun virtual puzzle activities with instant feedback! Students ADD, SUBTRACT, MULTIPLY & DIVIDE numbers in SCIENTIFIC NOTATION and enter their answers into a Google Sheet™. Correct answers reveal puzzle pieces - and the completed puzzle answers the riddle. Perfect for DISTANCE LEARNING, BLENDED LEARNING, HYBRID, OR IN-CLASS...these are highly engaging and motivational practice or review activities. 24 PROBLEMS (12 ADD/SUBTRACT & 12 MULTIPLY/DIVIDE): Scaffolded practice - problems incre