Bővebb ismertető
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coins new penny piece
1. Here are three coins, a i new penny, a new penny and a 2 new pence piece.
2. Two 2 new pennies are worth one new penny.
I > I
ip + 2 p - I p
3. Two new pennies are worth a 2 new pence piece.
Ip + I p = 2p
How many i new pennies would make a 2 new pence piece?