Mental Math: Multiplication Tricks

by Math Bench

16 cards beginner

Fast multiplication shortcuts: doubling and halving, the elevens trick, round-and-adjust, and squares ending in five.

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What’s inside

What is 25 × 4?: 100
What is 15 × 4?: 60
What is 18 × 5?: 90

16 cards in the full deck, free in the app with spaced repetition doing the scheduling.

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