# Applying number bonds within ten to add and subtract

## Lesson details

### Key learning points

1. In this lesson, we will be adding and subtracting 2 digit numbers without regrouping by using our number bond knowledge and using visual representations of place value.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 4 Questions

Q1.
There will be more number bonds for 7 than 8
Yes
Q2.
There will be fewer number bonds for 5 than 7
No
Q3.
Each number can be split into 1 whole and 2 parts
No
Q4.
4 + 5 and 5 +4 count as the same number bond
no

## Exit quiz

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### 4 Questions

Q1.
If I know that 3 plus 4 is equal to 7, then I know 3 tens plus 4 tens is equal to 70.
False
Q2.
'Counting in ones' is the most efficient way of counting
True
Q3.
If I know that 6 = 4 + 2 and 5 = 3 + 2, then I can use these facts and say that 65 - 42 = 23.
False