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.