One plus one equals two hand written on chalkboard. Math simple equation

---

Size: 6720px × 4267px
Location:
Photo credit: © Zoonar/Andres Victorero / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: add, algebra, background, black, blackboard, board, calculation, chalk, chalkboard, childhood, class, classroom, clever, concept, conceptual, drawing, education, elementary, equals, equation, hand, handwriting, idea, knowledge, learn, learning, math, mathematical, mathematics, message, number, photography, primary, school, sign, simple, solution, study, studying, sum, symbol, text, top, view, written