# subtraction

## Mixing the Methods - Mental Exercises for the Day

- Numeracy Activities
- Number and Algebra
- Level Three

Solve problems using a combination of addition, subtraction, multiplication and division mental strategies.

## When One Number Is Near a Hundred

- Numeracy Activities
- Number and Algebra
- Level Three

Solve addition and subtraction problems by compensating with tidy numbers (including equal additions).

## Problems like 73 - 19 = ?

- Numeracy Activities
- Number and Algebra
- Level Three

Solve addition and subtraction problems by compensating with tidy numbers (including equal additions).

## Problems like 67 - ? = 34

- Numeracy Activities
- Number and Algebra
- Level Three

Solve subtraction problems by using addition.

## People's Ages

- Numeracy Activities
- Number and Algebra
- Level Three

Solve problems using a combination of addition, subtraction, multiplication and division mental strategies.

## Near Doubles

- Numeracy Activities
- Number and Algebra
- Level Three

Solve addition and subtraction problems by compensating with tidy numbers (including equal additions).

## Mental or Written?

- Numeracy Activities
- Number and Algebra
- Level Four

Carry out column addition and subtraction for whole numbers and decimals.

Solve addition and subtraction problems using decomposition, leading to a written algorithm.

## Equal Additions

- Numeracy Activities
- Number and Algebra
- Level Three

## Don't Subtract - Add!

- Numeracy Activities
- Number and Algebra
- Level Three

Solve subtraction problems by using addition.

## Problems like 23 + ? = 71

- Numeracy Activities
- Number and Algebra
- Level Two

Solve addition and subtraction problems by compensating with tidy numbers.