Colouring NestFact Families Within 20
- Ages 6–8
- 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.
Up nextAddition with Pictures Within 10 →Advertisement
Four fact triangles with a teen number at the top and its two parts at the bottom, such as 15, 7 and 8. Beside each triangle children write its fact family: two adding facts (7 + 8 and 8 + 7) and two taking away facts (15 − 7 and 15 − 8). The same three numbers make all four. Answers on page 2.
Also try: Addition with Pictures Within 10 · Number Bonds to 20 · Number Line 0–20
How to use the fact triangles
- Cover the top number of a triangle with a finger: the two left, 7 and 11, add up to it.
- Cover one of the bottom numbers: the top take away the other, 18 − 11, gives it.
- Cut the triangles out and use them as flash cards: hide one corner and ask for it.
- Make your own with two dice: add the dots for the top number.
For fact families within 10, use the number bonds fact families sheet.
For teachers and parents
- What it practises
- Addition and subtraction within 10 and 20, missing addends and number lines, fact families
- How to use it
- Read each fact aloud with its answer. Use counters or a number line for the first sheets, then try without them. Answers on page 2.
- Time
- About 10–15 minutes
Advertisement
More addition and subtraction worksheets
See all addition and subtraction worksheets →
Seasonal: Back to School Coloring Pages
Collections: First Grade Math WorksheetsSecond Grade Math Worksheets
You might also like
Printing tips
- Keep ten counters or a ten frame nearby for the first sheets.
- Say each fact aloud: “eight and five make thirteen”.
- Mark with page 2 and redo the wrong facts the next day.
Advertisement