Adding Three Digit Numbers Using Partial Sums

by The Swift Bird

Price: 250 points or $2.5 USD

Subjects: math,mathElementary,operationsAndAlgebraicThinking,additionAndSubtraction,placeValue

Grades: 3,4

Description: Adding three digit numbers using partial sums method. This interactive deck helps students master three digit addition using the partial sums method. In this strategy, learners break each number into hundreds, tens, and ones, then add each place value separately before combining the partial sums to find the total. This approach builds strong number sense, reinforces place value understanding, and prepares students for efficient mental math and written algorithms. Perfect for practice, review, or independent work aligned to 3.NBT.A.2