Step-by-step Maths Level 1: Bonds to 5 as facts
Part of the Step-by-step Maths Level 1 number bonds to 5 chapter. Chapter overview · whole chapter on one page
Bonds to 5 as facts
A fact sounds like this: “2 and 3 make 5.”
Say the two parts, then the word make, then the whole.
Key ideas
- A fact says two parts and the whole, like 2 and 3 make 5.
- Say the fact out loud before you write it.
- A fact is true only when the parts add up to 5.
Method. Find the part that goes with 1.
- Read the fact. We know one part, which is 1.1 and ? make 5
- Find the missing part. Count on from 1 to 5.5 - 1 = 4
- Write the fact. 1 and 4 make 5
Check. 1 + 4 = 5. It works.
Watch out. Say the whole fact to check it sounds right.
Method. Think about what joins with 5 to make 5.
- Read the fact. One part is 5, and the whole is 5.? and 5 make 5
- Work out the other part. Zero added to 5 is still 5.5 + 0 = 5
- Write the fact. 0 and 5 make 5
Check. 0 + 5 = 5. It works.
Watch out. Zero is a part that adds nothing.
Method. Add the two numbers. Is the total 5?
- Add 3 and 1. Add the two parts.3 + 1 = 4
- Compare with 5. The total is 4, not 5.4 is not 5
- Write the answer. No
Check. The true fact is 3 and 2 make 5.
Watch out. A fact is true only when the total is exactly 5.
Watch out
Watch out. Check the total, not the shape of the numbers.
Exam tip
Grown-up tip. Ask your child to say each fact in a full sentence, like 4 and 1 make 5. Then ask them to say a fact that is not true, and check it with objects.
Exercise 4C Bonds to 5 as facts
Non-calculatorMethod. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.5 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 5 = 0
- Write the fact. 5 and 0 make 5
Check. 5 + 0 = 5. ✓
Watch out. Say the whole fact out loud: “5 and 0 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 2 and 3.2 + 3 = 5
- Compare with 5. The fact is true only when the total is 5.5 is the same as 5
- Write the answer. Yes
Check. If the fact is wrong, the correct fact is “2 and 3 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.
Method. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.2 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 2 = 3
- Write the fact. 2 and 3 make 5
Check. 2 + 3 = 5. ✓
Watch out. Say the whole fact out loud: “2 and 3 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 2 and 4.2 + 4 = 6
- Compare with 5. The fact is true only when the total is 5.6 is not 5
- Write the answer. No
Check. If the fact is wrong, the correct fact is “2 and 3 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.
Method. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.1 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 1 = 4
- Write the fact. 1 and 4 make 5
Check. 1 + 4 = 5. ✓
Watch out. Say the whole fact out loud: “1 and 4 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 4 and 1.4 + 1 = 5
- Compare with 5. The fact is true only when the total is 5.5 is the same as 5
- Write the answer. Yes
Check. If the fact is wrong, the correct fact is “4 and 1 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.
Method. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.1 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 1 = 4
- Write the fact. 1 and 4 make 5
Check. 1 + 4 = 5. ✓
Watch out. Say the whole fact out loud: “1 and 4 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 0 and 5.0 + 5 = 5
- Compare with 5. The fact is true only when the total is 5.5 is the same as 5
- Write the answer. Yes
Check. If the fact is wrong, the correct fact is “0 and 5 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.
Method. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.4 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 4 = 1
- Write the fact. 4 and 1 make 5
Check. 4 + 1 = 5. ✓
Watch out. Say the whole fact out loud: “4 and 1 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 5 and 0.5 + 0 = 5
- Compare with 5. The fact is true only when the total is 5.5 is the same as 5
- Write the answer. Yes
Check. If the fact is wrong, the correct fact is “5 and 0 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.
Method. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.4 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 4 = 1
- Write the fact. 4 and 1 make 5
Check. 4 + 1 = 5. ✓
Watch out. Say the whole fact out loud: “4 and 1 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 3 and 2.3 + 2 = 5
- Compare with 5. The fact is true only when the total is 5.5 is the same as 5
- Write the answer. Yes
Check. If the fact is wrong, the correct fact is “3 and 2 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.
Method. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.2 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 2 = 3
- Write the fact. 2 and 3 make 5
Check. 2 + 3 = 5. ✓
Watch out. Say the whole fact out loud: “2 and 3 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 5 and 1.5 + 1 = 6
- Compare with 5. The fact is true only when the total is 5.6 is not 5
- Write the answer. No
Check. If the fact is wrong, the correct fact is “5 and 0 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.
Method. Find the part that goes with the number you know.
- Read the fact. We know one part and the whole.5 and ? make 5
- Find the missing part. Work out what makes 5 with this part.5 - 5 = 0
- Write the fact. 5 and 0 make 5
Check. 5 + 0 = 5. ✓
Watch out. Say the whole fact out loud: “5 and 0 make 5”
Method. Add the two numbers. Is the total 5?
- Add the numbers in the fact. Add 1 and 4.1 + 4 = 5
- Compare with 5. The fact is true only when the total is 5.5 is the same as 5
- Write the answer. Yes
Check. If the fact is wrong, the correct fact is “1 and 4 make 5.” ✓
Watch out. A fact is true only when the total is exactly 5.