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.
More like this: Unit Rate Run · Proportion Pilot · Unit Rate Racer.