A cargo dock where prices rise and fall — each 10% is one crate of the base price, so add or remove crates and set the new amount.
When a price goes up or down by a percent, each 10% is one crate of the base amount — so the child stacks or removes crates to build the change, then sets the new total. Working the change from friendly 10% and 1% chunks makes percent increase and decrease a proportional-reasoning skill. Best for Grades 5–6.
A free, no-signup, no-ads math game for Grades 5–6 — practising percent-change, percent-of-a-number, percent-increase, percent-decrease, proportional-reasoning. Play in your browser on the KidsDoMath games hub or explore more Ratios & Rates games.
By grade level: 5th Grade Math Games6th Grade Math Games
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What math does Percent Change Port practice? Percent Change Port practices Percent Change, Percent of a Number, Percent Increase, Percent Decrease. When a price goes up or down by a percent, each 10% is one crate of the base amount — so the child stacks or removes crates to build the change, then sets the new total.
What grade is Percent Change Port for? Percent Change Port is built for Grades 5–6 (ages 10–12). It sits in the Ratios & Rates strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Percent Change Port? A cargo dock where prices rise and fall — each 10% is one crate of the base price, so add or remove crates and set the new amount.
Is Percent Change Port free to play? Yes. Percent Change Port is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.