Number Bonds to 20
- Ages 6–7
- Medium
- 2 pages
- Worksheet
- Answer key
- PDF: Letter & A4
- Updated
Tip: download the PDF for Letter or A4 paper, print it at 100% and use a pencil or crayon. Tap "Show solution" to check your answer, or print it as an answer key.
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Nine bonds with wholes from 11 to 20, such as 14 split into 13 and 1, or 17 into 7 and 10. Some ask for the whole and some for a part. Bonds with a 10 in them, like 10 and 7 making 17, show how teen numbers are a ten and some ones. Answers on page 2.
Also try: Number Bonds to 100 · Make 10 Ten Frame Worksheet · Number Line 0–20
Number bond games and tips
- Say each bond out loud as you write it: “13 and 1 make 14”.
- Use counters in two colours: put the whole on a ten frame, then turn some over. The two colours are the two parts.
- Play “hide the part”: put some counters under a cup and ask how many are hiding.
- Once the sheet feels easy, cover the given part too and ask for both: how many different bonds can you find?
More number sense: ten frames, the more than, less than worksheets and the addition colour by code pages. Every sheet in this set is on the number bonds worksheets page.
For teachers and parents
- What it practises
- Number bonds (part-part-whole), adding and finding a missing part, fact families
- How to use it
- Say each bond aloud (“six and four make ten”). Use counters in two colours for the first sheets, then try without them. Answers on page 2.
- Time
- About 10–15 minutes
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Printing tips
- Keep ten counters or a ten frame on the table for the first sheets.
- Say each bond aloud: “six and four make ten”.
- Check with page 2 and redo any bond that was wrong the next day.
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