Number bonds help students see that a whole number can be made from two smaller parts. This cheat sheet gives young learners clear models for putting numbers together and taking them apart. It supports early addition and subtraction by using pictures, fingers, and ten frames.
Students can use it as a simple binder reference while practicing number facts.
Key Facts
- A number bond shows a whole and its parts, such as 7 is made from 3 and 4.
- The parts in a number bond can switch places, so 3 + 4 = 7 and 4 + 3 = 7.
- Making 10 means finding two numbers that add to 10, such as 6 + 4 = 10.
- The main making 10 pairs are 0 + 10, 1 + 9, 2 + 8, 3 + 7, 4 + 6, and 5 + 5.
- A ten frame has 10 spaces and helps show how many are filled and how many are empty.
- If a ten frame has 8 filled spaces, then 2 empty spaces are needed because 8 + 2 = 10.
- Fingers can show making 10 because 7 fingers up means 3 fingers down, so 7 + 3 = 10.
- A missing part can be found by counting on from the known part to the whole.
Vocabulary
- Number bond
- A number bond is a picture that shows how two parts make one whole number.
- Whole
- The whole is the total number made when the parts are put together.
- Part
- A part is one of the smaller numbers that makes the whole.
- Making 10
- Making 10 means finding two numbers that add together to equal 10.
- Ten frame
- A ten frame is a box with 10 spaces that helps students see numbers and pairs to 10.
- Pair
- A pair is two numbers that go together, such as 4 and 6 in 4 + 6 = 10.
Common Mistakes to Avoid
- Mixing up the whole and the parts is wrong because the whole is the total, not one of the smaller numbers.
- Forgetting that parts can switch places is wrong because 2 + 8 and 8 + 2 both make 10.
- Counting the filled spaces twice in a ten frame is wrong because each space should be counted only one time.
- Saying 5 + 4 makes 10 is wrong because 5 + 4 = 9, so one more is needed.
- Using fingers without checking how many are down is wrong because the fingers down show the missing part needed to make 10.
Practice Questions
- 1 Fill in the missing part: 6 + ___ = 10.
- 2 A number bond has whole 9 and one part 4. What is the other part?
- 3 A ten frame has 7 filled spaces. How many empty spaces are there, and what making 10 equation does it show?
- 4 Why can 3 + 7 and 7 + 3 both be used to show the same making 10 pair?