Number bonds worksheets
Two parts make a whole.
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Example
Example: one sheet of missing-part bonds to 10 for first grade, with answers
A first-grade teacher wants a quick check on number bonds to 10. Style “Number bonds”, Task “Find the missing part”, Numbers up to 10, In colour, 1 page, “Add the answers” on, worksheet number 1, US Letter.
- The sheet has 15 bonds, 3 across and 5 down. In each, the whole is given at the top and one of the two parts is missing.
- The wholes run from 5 to 10, and no split uses a 0: zeros only come up in bonds to 5.
- No split comes twice on the page: 9 is asked as 1 and 8, 6 and 3, 7 and 2, and 4 and 5.
- Page 2 is the answer key: the same 15 bonds with the missing parts in red.
| # | Whole | Parts shown | Answer |
|---|---|---|---|
| 1 | 9 | □ and 8 | 1 |
| 2 | 8 | 6 and □ | 2 |
| 3 | 9 | □ and 3 | 6 |
| 4 | 6 | 5 and □ | 1 |
| 5 | 10 | □ and 7 | 3 |
| 6 | 5 | □ and 4 | 1 |
| 7 | 10 | 2 and □ | 8 |
| 8 | 7 | □ and 6 | 1 |
| 9 | 9 | □ and 2 | 7 |
| 10 | 9 | 4 and □ | 5 |
| 11 | 5 | □ and 2 | 3 |
| 12 | 6 | □ and 3 | 3 |
| 13 | 10 | □ and 1 | 9 |
| 14 | 10 | 5 and □ | 5 |
| 15 | 7 | 3 and □ | 4 |
number-bonds.pdf: one worksheet with 15 blanks and its answer page. For a fresh sheet next week, change the worksheet number; once bonds to 10 are solid, move on to 20 or to “Make ten to add”.
How it works
- Choose the style — bonds, cherries or houses — and the task.
- Pick numbers up to 5, 10 or 20 and how many pages.
- Print; the answer pages come after all the sheets, in the same order.
Frequently asked questions
- What are number bonds?
- A whole and the two parts it splits into — 7 is 3 and 4, or 5 and 2. Knowing them by heart makes adding and subtracting fast.
- What is the make-ten task?
- To add 8 + 5, split the 5 into 2 and 3: 8 + 2 makes 10, and 10 + 3 is 13. The worksheet shows the split under the second number.
- Which style should I choose?
- Bonds are used in many English-speaking schools; cherries come from Japan’s first grade; number houses from German and French classrooms — all teach the same idea.
- Which grade is it for?
- Kindergarten and first grade: bonds to 5 and 10 first, then 20 and the make-ten strategy.
- How many problems are on a page?
- 15 bonds or cherries with numbers up to 10 or 20, 12 with numbers up to 5, 12 make-ten sums, and 8 number houses (12 when the task is to find the whole).
- Will I get the same worksheet again?
- Only with the same settings and worksheet number, which is handy for a second copy. Change the number for new problems; adding pages keeps the first pages as they were and adds new ones after them.
- Is anything uploaded?
- No. The pages are made in your browser.