Hop across a river of drifting lily pads marked +3, −5, −(−2) and ×(−1), choosing the pads whose steps make your running total land exactly on the far-bank gate.
Integer Crossing plays like Crossy Road: the child hops lane by lane across a river of drifting lily pads, and every pad is a signed step (+3, −5, later −(−2) and ×(−1)) applied to a running total drawn as hop arcs on a number line below. The far-bank gate opens only on its exact number, so choosing a route is building an integer expression — and a wrong gate shows the gap on the number line (you reached 11, the gate is 5: 11 + (−6) = 5), targeting sign slips, the 'subtracting a negative makes it smaller' misconception and what multiplying by −1 does. Best for Grades 6–7.
A free, no-signup, no-ads math game for Grades 6–7 — practising integers, negative-numbers, addition, subtraction, multiplication. Play in your browser on the KidsDoMath games hub or explore more Arithmetic games.
By grade level: 6th Grade Math Games7th Grade Math Games
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What math does Integer Crossing practice? Integer Crossing practices Integers, Negative Numbers, Addition, Subtraction. Integer Crossing plays like Crossy Road: the child hops lane by lane across a river of drifting lily pads, and every pad is a signed step (+3, −5, later −(−2) and ×(−1)) applied to a running total drawn as hop arcs on a number line below.
What grade is Integer Crossing for? Integer Crossing is built for Grades 6–7 (ages 11–13). 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 Integer Crossing? Hop across a river of drifting lily pads marked +3, −5, −(−2) and ×(−1), choosing the pads whose steps make your running total land exactly on the far-bank gate.
Is Integer Crossing free to play? Yes. Integer Crossing is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.