Drag a tiled square until its area hits the target so its side reads as the root, trap √n between two perfect-square tiles on the number line, then zoom the unit into tenths and slide the marker to the tenth whose square lands nearest n.
One drag mechanic at three zoom levels: grow a tiled square until its live area matches the target and read the root off its side; slide a one-unit bracket along a number line whose ticks carry their perfect-square tiles (1, 4, 9, 16…) until the two tiles sandwich n, so k < √n < k+1 reads straight off the tiles; then zoom that unit into tenths and move the marker while the candidate's square (6.3² = 39.69) prints live, choosing the tenth whose square lands nearest n. It drills the misconception that √n must be a whole number and gives every irrational root an address on the line. Best for Grades 7–8.
A free, no-signup, no-ads math game for Grade 8 — practising square-roots, perfect-squares, irrational-numbers, estimation. Play in your browser on the KidsDoMath games hub or explore more Arithmetic games.
By grade level: 8th Grade Math Games
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What math does Root Range practice? Root Range practices Square Roots, Perfect Squares, Irrational Numbers, Estimation. One drag mechanic at three zoom levels: grow a tiled square until its live area matches the target and read the root off its side; slide a one-unit bracket along a number line whose ticks carry their perfect-square tiles (1, 4, 9, 16…) until the two tiles sandwich n, so k < √n < k+1 reads straight off the tiles; then zoom that unit into tenths and move the marker while the candidate's square (6.3² = 39.69) prints live, choosing the tenth whose square lands nearest n.
What grade is Root Range for? Root Range is built for Grade 8 (ages 13–14). It sits in the Arithmetic strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Root Range? Drag a tiled square until its area hits the target so its side reads as the root, trap √n between two perfect-square tiles on the number line, then zoom the unit into tenths and slide the marker to the tenth whose square lands nearest n.
Is Root Range free to play? Yes. Root Range is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.