Multiplying by 12: The Twelve Times Table Strategy

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What is a helpful strategy for multiplying a number by $12$?

Break the $12$ into a $10$ and a $2$. Multiply the number by $10$, then multiply it by $2$, and add the two results together. For example, $12 \times 3 = (10 \times 3) + (2 \times 3) = 30 + 6 = 36$.

Use the $(10 + 2)$ strategy to find $12 \times 5$.

1. Multiply by 10: $10 \times 5 = 50$. 2. Multiply by 2: $2 \times 5 = 10$. 3. Add them together: $50 + 10 = 60$. So, $12 \times 5 = 60$.

$$ 12 \times 1 = ? $$

$$ 12 \times 1 = 12 $$

$$ 12 \times 2 = ? $$

$$ 12 \times 2 = 24 $$

$$ 12 \times 3 = ? $$

$$ 12 \times 3 = 36 $$

$$ 12 \times 4 = ? $$

$$ 12 \times 4 = 48 $$

$$ 12 \times 5 = ? $$

$$ 12 \times 5 = 60 $$

$$ 12 \times 6 = ? $$

$$ 12 \times 6 = 72 $$

$$ 12 \times 7 = ? $$

$$ 12 \times 7 = 84 $$

$$ 12 \times 8 = ? $$

$$ 12 \times 8 = 96 $$

$$ 12 \times 9 = ? $$

$$ 12 \times 9 = 108 $$

$$ 12 \times 10 = ? $$

$$ 12 \times 10 = 120 $$

$$ 12 \times 11 = ? $$

$$ 12 \times 11 = 132 $$

$$ 12 \times 12 = ? $$

$$ 12 \times 12 = 144 $$