# Number bonds to 9

Find the number that makes 10 when added to a given number from 1 to 9 (number bonds to 10)

Builds on: Numbers up to 10 into pairs (hard, https://ai.page/c/numbers-up-to-10-into-pairs/en.md)

Concept id: number-bonds-to-9. Subject: maths. Licence: CC BY-SA 4.0.

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