Sums to 15
Add numbers with sums between 11 and 15
What You'll Learn
- Add numbers to get sums from 11 to 15
- Use making 10 strategy for teen numbers
- Understand that 11 = 10 + 1, 12 = 10 + 2, etc.
📖Going Past 10
Now we are adding numbers that give us more than 10! Numbers like 11, 12, 13, 14, and 15 are called teen numbers.
📖Make a 10 First
For 8 + 5, think: 8 needs 2 more to make 10. Take 2 from the 5, leaving 3. So 8 + 5 = 10 + 3 = 13!
💡
Use your 10-bonds! They make adding past 10 much easier.
⚠️
These problems are harder. Take your time and use the make-a-ten strategy.
Practice Worksheets
Sums to 15 (Set A)
Practice addition with sums up to 15
12 problemsStart
Sums to 15 (Set B)
More practice with sums to 15
12 problemsStart
Sums to 15 (Set C)
Additional drill with sums to 15
12 problemsStart
Sums to 15 (Set D)
Keep practicing sums to 15
12 problemsStart
Sums to 15 (Set E)
Master sums to 15
12 problemsStart