# Recall one and two more or less than numbers to ten

I can recall known addition and subtraction facts within 10

# Recall one and two more or less than numbers to ten

I can recall known addition and subtraction facts within 10

## Slide deck

## Lesson details

### Key learning points

- When we add one, we can see this as the number after in our count. We can think of this as one more.
- When we subtract one, we can see this as the number before in our count. We can think of this as one less.
- Adding two from an even/odd number, we can see this as the even/odd number after. We can think of this as two less.
- Subtracting two from an even/odd number, can be seen as the even/odd number before. We can think of this as two less.

### Common misconception

Children may resort to counting strategies to find the difference e.g. counting back to subtract. Children may incorrectly identify the even/odd number 'before' or 'after' the one given.

Provide practice for children to identify numbers before/after or odd/even numbers before/after a given one. Initially, allow children to use a number line. Remove this scaffold once feeling more confident.

### Keywords

One more - The number after a given number is one more than it.

One less - The number before a given number is one less than it.

Two more

Two less

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

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## Worksheet

## Starter quiz

### 6 Questions

## Exit quiz

### 6 Questions

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7