On the bench · not built yet

Elevator Hundred

An elevator moves up by tens and floors by ones in a hundred-chart building; ride it to solve sums.

Nearby on the shelf

Short animated stories pause at the question; students act out the problem with counters before choosing...

Pairs of numbers roll in on a conveyor; slide counters across to make a ten and watch the harder fact turn easy.

A balance scale with numbers on both sides; find the missing weight so it levels. Kills the "equals means...