**Mnemonic Device:**

- To multiply by 9, hold your hands palms down in front of you. Then, fold down the finger (counting from the left pinky to the right pinky) of the number to be multiplied by 9. The fingers to the left of the folded down one will give you the number of tens. The fingers to the right of the folded down one will give you the number of ones.

**Explanation: **to learn and remember your multiplication facts when multiplying 9 times (x) any number from 1 to 10.

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