The 9 Times Table Finger Trick
⏱ 0:34📘 Grade 2 · The 9 times table
Hold up ten fingers and fold down the 3rd: 2 fingers on the left, 7 on the right, so 9 × 3 = 27. Works all the way from 9 × 1 to 9 × 9.
The videos are narrated in Mandarin Chinese with on-screen subtitles.
📚 What you will learn
- Hold up both hands and number the fingers 1 to 10 from left to right.
- To work out 9 × n, fold down finger number n.
- Fingers on the left of the folded one give the tens; fingers on the right give the ones.
- 9 × 3: 2 on the left, 7 on the right → 27. 9 × 7: 6 on the left, 3 on the right → 63.
- Pattern: from 9 × 1 to 9 × 9 the tens go up by 1 and the ones go down by 1, and the two digits always add up to 9.
🎙️ What the video says (in Chinese)
- 9 的乘法口诀，总是记不住？教你一个手指魔法！
- 伸出两只手，10 根手指，从左往右数：1、2、3……10。
- 算 9 × 3，就把第 3 根手指弯下去。
- 左边有 2 根，是十位；右边有 7 根，是个位。所以，9 × 3 = 27！
- 再试试 9 × 7：弯下第 7 根，左边 6 根，右边 3 根，就是 63！
- 9 × 1 到 9 × 9，十位一个一个变多，个位一个一个变少，太神奇啦！
✏️ Try it yourself
Use your fingers: what is 9 × 4?
Show answer
Fold the 4th finger: 3 on the left, 6 on the right → 36
9 × 8 = ? Check that the two digits add up to 9.
Show answer
72, and 7 + 2 = 9
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