Rounding Unlocked

Rounding Unlocked teaches kids how to round numbers the right way — through understanding, not just memorization.
Built by a real educator with 20+ years of experience teaching in Philadelphia classrooms, this app takes children through 6 carefully sequenced worlds that build rounding fluency from the ground up.
What your child will learn:

World 1: What is Rounding? — number lines and the mountain rule
World 2: Rounding to the Nearest 10 — two-digit numbers
World 3: Rounding to the Nearest 100 — three-digit numbers
World 4: Rounding to the Nearest 1,000 — four-digit numbers
World 5: Rounding Decimals — to the nearest whole number
World 6: Estimating with Rounding — real-world problem solving

Features:

Interactive tips that teach the concept before practice begins
Visual number lines, mountain diagrams, and place value spotlights
10-question practice and quiz for every world
Rounding Master Challenge — 40 questions across all 6 worlds
Audio narration for every tip — perfect for struggling readers
Worlds 1 and 2 are completely free

Rounding is one of the most important foundational math skills. Unlock it today.