Numbers and Operations

Sample Lesson: Click to Play

Grade 3: numbers and operations.  Explore fractions with Michiko at the kite factory.

Grade 3 Numbers & Operations

Explore fractions with Michiko at the kite factory.

K5 builds numeracy and confidence

Confidence and competency in basic arithmetic lies at the heart of success in math.

Our numbers and operations program has over 300 online activities covering elementary school arithmetic, from learning to count, to addition and subtraction, fractions and beyond.

Avoid math anxiety by learning arithmetic online

We believe every kid is capable of mastering arithmetic. With K5, students learn at their level and at their own pace in an environment that is completely patient and impartial. Our online math lessons provide immediate feedback and positive reinforcement to keep your child motivated and engaged.

Concepts before drills

It’s critical that kids gain a full understanding of concepts in math before embarking on practice and drills. Our online math lessons provide full instruction, not just quizzes.

Real-world scenarios build deeper understanding

Each of our number operations lessons uses interactive, animated real-world scenarios to teach math concepts. For example, kids learn the meaning of subtraction by helping rabbits jump off a diving board at a swimming pool. It’s critical that kids learn arithmetic in a tangible, not an abstract way.

Virtual manipulatives and models give meaningful interaction

Virtual counters, ones, tens and hundreds blocks, and other tools are used extensively. In one lesson, a model of an array is used to represent two digit multiplication problems, clearly demonstrating the concept being learned in a tangible manner.

300+ numbers and operations activities

We place your child at the right instruction level

K5 kids start by completing a free online math assessment.  Kids are then placed in math lessons at their skill level, avoiding the boredom and frustration associated with lessons that are too easy or too hard.