Number Bonds of 10
⏱ 0:27📘 Grade 1 · Numbers 6 to 10
Split 10 dots with a stick: 1 and 9, 2 and 8, 3 and 7, 4 and 6, 5 and 5 — and back again. Learn the “friends of 10”.
The videos are narrated in Mandarin Chinese with on-screen subtitles.
📚 What you will learn
- 10 can be split into two parts in different ways: 1 and 9, 2 and 8, 3 and 7, 4 and 6, 5 and 5.
- Swap the two parts and it still makes 10: 9 and 1, 8 and 2, 7 and 3, 6 and 4.
- Two parts put back together make 10 again, e.g. 3 + 7 = 10.
- These pairs are the “friends of 10”. Knowing them by heart makes adding up to 20 (the make-ten trick) much faster.
🎙️ What the video says (in Chinese)
- 10 可以分成几和几？我们来分一分！
- 10 个圆点排成一排，用一根小棒把它们分成两份。
- 左边 1 个，右边 9 个：1 和 9 合起来是 10。
- 再往右移：2 和 8，3 和 7，4 和 6，5 和 5。
- 反过来：9 和 1，8 和 2，7 和 3，6 和 4，也都是 10！
- 记住 10 的好朋友，以后凑十就很快啦！
✏️ Try it yourself
10 is split into 4 and what?
Show answer
4 and 6
7 + ? = 10
Show answer
3, because 7 and 3 make 10
🎬 More videos
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