Topic 3
Multiplication & Division
Step 1 · Learn
Read the ideas
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The Clone Machine
Multiplication is just fast addition.
- 📏🔒
The Area Model
Split big multiplications into a grid.
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The Column Method
The column method, with the mystery 0 explained.
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The Chunking Claw
Share candies fairly using big chunks first.
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The Mind-Ninja
Divide in one line, carrying each remainder in your head.
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Long Division
Write the subtraction down and the head-work disappears.
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The Leftover Rule
What do you do with the leftovers?
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The Opposite Engine
Use the flip trick to find the missing number.
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Brackets First
Why 4 + 5 x 2 is 14 and not 18.
- ⚙️🔒
Find the Rule
4→28, 5→35, so the rule is × 7.
Step 2 · Practice
Try the quests
Step 3 · Boss Battle
Beat the boss
🛡️ 🛡️ 🛡️ 3 shields — lose all → 60-second cooldown
Round 1
The stone door has 45 rows of 12 glowing…
🔒Round 2
A stone bridge of 1,460 slabs stretches…
🔒Round 3
A glowing rune bars the lava bridge. It…
🔒Round 4
A wall must be re-tiled: it is 24 tiles…
🔒Round 5
175 gold coins spill across the floor.…
🔒Round 6
GLYPH counts 7,224 beetles and six jars.…
🔒Round 7
The board records 268 sacks of grain,…
🔒Round 8
There are 966 lengths of timber and 42…
🔒Round 9
The vault door reads 9 + 6 x 7 - 5.…
🔒Round 10
The vault machine turns 6 → 42, 8 → 56…
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