DEPS Add & Subtract

DEPS Add & Subtract turns addition and subtraction into a colorful adventure. Children don't just memorize answers — they learn the strategies that real mental math is built on, one playful world at a time. 8 WORLDS, 8 STRATEGIES • Ten Bridge – make a ten first, then add the rest (8 + 6 = 8 + 2 + 4) • Hundreds Castle – jump rows of ten and squares of one on the hundreds chart • Break & Build – add tens to tens and ones to ones with base-ten blocks • Kangaroo Jumps – hop along an empty number line • Missing Piece – solve subtraction by adding on, with story problems and bar models • Magic Adjust – use a friendly number and fix it, or keep the same difference • Trading Market – the written column method with trades, shown the way it is taught in your country • Estimation Arena – over or under, rounding, front-end estimates and Box Math LEARNS FROM MISTAKES Boss levels include an "Error…