Step-by-step Maths Level 1: Missing parts in bonds to 10
Part of the Step-by-step Maths Level 1 number bonds to 10 chapter. Chapter overview · whole chapter on one page
Missing parts in bonds to 10
A bond to 10 has a whole of 10 at the top and two parts below.
If one part is missing, take the part you know away from 10. Or count on from it to 10.
Key ideas
- The whole is 10.
- The missing part is 10 take away the part you know.
- The two parts always add up to 10.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 7.10 and 7
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 7 = 3
- Write the missing part. 3
Check. Put the two parts back together: 7 and 3 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 2.10 and 2
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 2 = 8
- Write the missing part. 8
Check. Put the two parts back together: 2 and 8 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 5.10 and 5
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 5 = 5
- Write the missing part. 5
Check. Put the two parts back together: 5 and 5 make 10.
Watch out. The two parts always add up to the whole.
Watch out
Watch out. Use the whole, 10. Do not use 5 as the whole for these bonds.
Exam tip
Grown-up tip. Draw a bond on paper, cover one part with a finger, and ask your child to say the hidden part.
Exercise 5B Missing parts in bonds to 10
Non-calculatorMethod. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 4.10 and 4
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 4 = 6
- Write the missing part. 6
Check. Put the two parts back together: 4 and 6 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 9.10 and 9
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 9 = 1
- Write the missing part. 1
Check. Put the two parts back together: 9 and 1 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 7.10 and 7
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 7 = 3
- Write the missing part. 3
Check. Put the two parts back together: 7 and 3 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 5.10 and 5
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 5 = 5
- Write the missing part. 5
Check. Put the two parts back together: 5 and 5 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 10.10 and 10
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 10 = 0
- Write the missing part. 0
Check. Put the two parts back together: 10 and 0 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 4.10 and 4
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 4 = 6
- Write the missing part. 6
Check. Put the two parts back together: 4 and 6 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 10.10 and 10
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 10 = 0
- Write the missing part. 0
Check. Put the two parts back together: 10 and 0 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 3.10 and 3
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 3 = 7
- Write the missing part. 7
Check. Put the two parts back together: 3 and 7 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 5.10 and 5
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 5 = 5
- Write the missing part. 5
Check. Put the two parts back together: 5 and 5 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 5.10 and 5
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 5 = 5
- Write the missing part. 5
Check. Put the two parts back together: 5 and 5 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 0.10 and 0
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 0 = 10
- Write the missing part. 10
Check. Put the two parts back together: 0 and 10 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 3.10 and 3
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 3 = 7
- Write the missing part. 7
Check. Put the two parts back together: 3 and 7 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 10.10 and 10
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 10 = 0
- Write the missing part. 0
Check. Put the two parts back together: 10 and 0 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 6.10 and 6
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 6 = 4
- Write the missing part. 4
Check. Put the two parts back together: 6 and 4 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 0.10 and 0
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 0 = 10
- Write the missing part. 10
Check. Put the two parts back together: 0 and 10 make 10.
Watch out. The two parts always add up to the whole.
Method. Find the missing part. Ask what goes with the known part to make the whole.
- Look at the whole and the part you know. The whole is 10 and the known part is 5.10 and 5
- Count on from the known part to the whole. Or take the known part away from the whole.10 - 5 = 5
- Write the missing part. 5
Check. Put the two parts back together: 5 and 5 make 10.
Watch out. The two parts always add up to the whole.