# Problem Solving Activities

## Reversing Numbers

- Problem Solving Activities
- Number and Algebra
- Level Two

Add 2-digit numbers with and without renaming

## A Square of Circles

- Problem Solving Activities
- Number and Algebra
- Level Two

Recall basic addition facts to 20

Investigate odd and even numbers

Devise and use problem solving strategies (guess and check, act it out, draw a picture)

## Pigs and Ducks

- Problem Solving Activities
- Number and Algebra
- Level Two

Solve a story problem using multiplication facts of 2 and 4.

Devise and use problem solving strategies (guess and check, guess and improve, act it out, draw a picture)

## Shopping

- Problem Solving Activities
- Number and Algebra
- Level Two

Give change for sums of money

Solve subtraction problems presented in different forms

Devise and use problem solving strategies to explore situations mathematically (guess and check, use drawing, use equipment, be systematic, act it out).

## Coin Exchange

- Problem Solving Activities
- Number and Algebra
- Level Two

Represent a sum of money by a combinations of coins

Use a list to work systematically

Devise and use problem solving strategies to explore situations mathematically (systematic list, use equipment)

## Counting Cubes

- Problem Solving Activities
- Number and Algebra
- Level One

skip count in 2s, 3s, and 5s

devise and use problem solving strategies (make an organised list)

## Well,Well!

- Problem Solving Activities
- Number and Algebra
- Level One

Skip count in twos

Investigate and find patterns in addition and subtraction

Devise and use problem solving strategies (act it out, draw a picture)

## You Be The Teacher

- Problem Solving Activities
- Number and Algebra
- Level One

Use their mathematical knowledge to invent basic addition and subtraction problems;

Solve other students’s problems.

Devise and use problem solving strategies to explore situations mathematically.

## Points

- Problem Solving Activities
- Number and Algebra
- Level One

Add several small numbers.

Devise and use problem solving strategiesto explore situations mathematically. This problem uses guess and check, be systematic, draw a picture, and think.