# subtraction

## How many ten dollar notes?

- Numeracy Activities
- Number and Algebra
- Level Three

Solve addition and subtraction problems by using place value.

## The Missing Tens and Ones

- Numeracy Activities
- Number and Algebra
- Level One

Solve addition and subtraction problems using groups of ten.

## Subtraction in Parts

- Numeracy Activities
- Number and Algebra
- Level Two

Solve addition and subtraction problems by going through tens.

Solve addition and subtraction problems by going back through tens.

## Up Over Ten

- Numeracy Activities
- Number and Algebra
- Level Two

Solve addition and subtraction problems by going through tens.

## Adding Tens and Ones

- Numeracy Activities
- Number and Algebra
- Level Two

Solve addition and subtraction problems by using place value partitioning.

## Subtracting Tens

- Numeracy Activities
- Number and Algebra
- Level One

Solve addition and subtraction problems using groups of ten.

Solve addition and subtraction problems by using place value partitioning.

## Subtracting Tens and Ones

- Numeracy Activities
- Number and Algebra
- Level Two

Solve addition and subtraction problems by using place value partitioning.

## Adding Tens

- Numeracy Activities
- Number and Algebra
- Level One

Solve addition and subtraction problems using groups of ten.

Solve addition and subtraction problems by using place value partitioning.

## Counting Back

- Numeracy Activities
- Number and Algebra
- Level One

Solve subtraction problems to 100 by counting back in their heads.

## Crossing the Five Barrier

- Numeracy Activities
- Number and Algebra
- Level One

Solve addition problems to 20 by counting all the objects in their head.

Solve subtraction problems from 20 by counting all the objects in their head.