Teacher writing calculations on the blackboard, steadycam shot
Girl doing calculations and writing something in the cafe, steadycam shot
4k. Ultra HD. Two customers discontent architect work. Text pad. calculations. worker with helmet in suit and outdoors on new house building blueprints with crane and beams at bg housing industry
Businessman writing notes on the glass board near the mess on his table at night. Stock. Man overworking, writing calculations on glass
Businessman writing notes on the glass board near the mess on his table at night. Stock. Man overworking, writing calculations on glass