Number Bonds - Worksheet 9 - Kindergarten

Hard

Break numbers into two parts using number bond diagrams (Hard)

15 problems · 10-15 minutes · Skills: addition, number sense

About This Worksheet

This hard-level worksheet contains 15 problems designed for Kindergarten students practicing number bonds. Hard worksheets feature challenging problems including multi-step questions, missing values, and real-world applications to push students further.

Regular practice with worksheets helps students build fluency and confidence in essential math skills.

How to Solve: Worked Example

Example Problem: Solve the first problem on the worksheet.
Solution Steps:
  1. Read the problem carefully.
  2. Identify what is being asked.
  3. Use what you know to find the answer.
  4. Check your work.
Answer: See the answer key below
Tip: Take your time and read each problem carefully before answering!
1
10 + 12 =
2
20 + 4 =
3
8 + 5 =
4
12 + 4 =
5
4 + 5 =
6
4 + 11 =
7
11 + 20 =
8
8 + 14 =
9
15 + 9 =
10
5 + 20 =
11
16 + 7 =
12
9 + 16 =
13
12 + 20 =
14
7 + 2 =
15
11 + 18 =

Answer Key

1. 222. 243. 134. 165. 96. 157. 318. 229. 2410. 2511. 2312. 2513. 3214. 915. 29

Frequently Asked Questions

How do I download this number bonds - worksheet 9 worksheet?

Click the "Download PDF / Print" button at the top of the worksheet. You can save it as a PDF or print it directly. The answer key will be on a separate page.

How do I find worksheets at different difficulty levels?

Each subtopic has 10 worksheets: Worksheets 1-3 are Easy, 4-7 are Medium, and 8-10 are Hard. Start with Easy worksheets to build confidence, then progress to harder ones.

How many problems are on this worksheet?

This worksheet contains 15 problems. It typically takes 10-15 minutes to complete. An answer key with all solutions is included.