What this worksheet covers
Every problem on this sheet has a 3 in it, with the other factor from 2 to 10 and the order mixed. There are only nine facts in the table, which is why the sheet is sixteen problems, not twenty, and why the three versions repeat the facts in different orders. The point is to hear the table as a whole: three, six, nine, twelve.
Who it is for
Third grade, 3.OA.C.7. Most classes teach the 3s after the 2s, 5s and 10s. It is the table where skip counting starts to need real effort, and a good place to teach the doubling trick: 3 × n is 2 × n plus one more n.
The 3 times table, from 3 × 2 to 3 × 10 · grades 2 and 3
A worked example
For 3 × 7, double 7 to get 14 and add one more 7: 14 + 7 = 21. Check with skip counting: 3, 6, 9, 12, 15, 18, 21. Ask students to do the same for 3 × 8 and find that it is 16 + 8.
Mistakes to watch for
- Skipping a count while skip counting, so 3 × 7 comes out as 18 or 24. Use fingers or a number line to count the steps.
- Confusing 3 × 8 and 3 × 9 with 24 and 27 in the wrong order. Say the pair together: eight, twenty-four; nine, twenty-seven.
Make it your own
This sheet is one setting of the math worksheet generator. Open it there to change the skill, the range of numbers or the heading, or to mix several skills on one sheet.