Three Digit Addition on an Open Number Line

by The Swift Bird

Price: 200 points or $2 USD

Subjects: math,mathElementary,operationsAndAlgebraicThinking,additionAndSubtraction

Grades: 3,4

Description: Three digit addition on an open number line. This engaging math activity helps students build fluency in three-digit addition using open number lines. Learners break apart numbers based on place value and make friendly jumps of hundreds, tens, and ones to find the total. This visual and flexible strategy supports mental math and deepens understanding of regrouping, all without relying solely on the standard algorithm. Perfect for guided practice, math centers, or independent work aligned to 3.NBT.A.2!