MyMathKidK-8 Curriculum

Grade 1 Number Bonds: Number Bonds 11-15

Extend number bonds to teen numbers

What You'll Learn

Break apart numbers 11-15 into tens and ones
Find missing parts in bonds up to 15
Use 10 as a benchmark

📖Teen Numbers as 10 and Some More

11 is 10 and 1. 12 is 10 and 2. 13 is 10 and 3. When you see a teen number, think of it as 10 plus some ones!

💡

For 14, think: "That is 10 and 4." You can also think: "What do I add to 6 to make 14?" Use your Making 10 skills!

Worked examples

Real problems from the practice worksheets, solved one step at a time.

Example 1
? + 5 = 11
1. A number bond joins two parts to make a whole. The whole is 11 and one part is 5.
2. To find the missing part, take the known part away from the whole: 11 − 5.
3. So the missing part is 6.
Answer: 6
Example 2
3 + ? = 11
1. A number bond joins two parts to make a whole. The whole is 11 and one part is 3.
2. To find the missing part, take the known part away from the whole: 11 − 3.
3. So the missing part is 8.
Answer: 8
Example 3
1 + 10 = ?
1. A number bond joins two parts to make a whole. Here the two parts are 1 and 10.
2. To find the whole, put the parts together: 1 + 10.
3. So the whole is 11.
Answer: 11

Practice Worksheets

Number Bonds 11-15 (Set A)

Find missing parts in bonds from 11 to 15

Number Bonds 11-15 (Set B)

More practice with bonds 11-15

Number Bonds 11-15 (Set C)

Additional bonds 11-15 practice

Number Bonds 11-15 (Set D)

Keep practicing bonds 11-15

Number Bonds 11-15 (Set E)

Master bonds 11-15

Making 10 Review

Number Bonds Within 20