Do this one in your head
6 × 23
Step 1 — Split the awkward number
Step 2 — Multiply each easy piece
Step 3 — Add them up
Your turn — what's the answer?
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Fast mental multiply
↩ Reverse: factorise
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Show me the steps
Splitting a number and multiplying each piece is the distributive law doing your mental arithmetic:
6 × 23 = 6 × 20 + 6 × 3
. Run it
backwards
— spot the common factor and pull it out front — and you've started
factorising
, which is the next concept.