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Listed under:  Number (Mathematics)  >  Subtraction

### Addition and Subtraction - Calculate

This game focuses on addition, subtraction and estimation. It can be played many times as the totals will often be different and the focus of the mathematics can change. There is a video included to help with how to play the game.

### Duck in a Bucket - Calculate

In this game for pairs or teams, students practise addition and subtraction of small numbers, using multiple strategies.

### Race to... - Calculate

This game challenges students to use their knowledge of place value to add and subtract random numbers in order to meet a target value.

### Domino Bingo - Calculate

In this game, students add single digit numbers and subitise domino dot patterns.

### Even and Odd Numbers - Calculate

In this activity let’s look at what happens when we add, subtract and multiply pairs of even numbers, pairs of odd numbers, or even a mix of even and odd numbers!

### ROWCO - Calculate

ROWCO is a card game that will help students practice their addition facts while playing an engaging strategy game.

### Make 10 - Calculate

This game challenges students to choose pairs of cards that sum to ten. The game develops students' skills of addition and subtraction, creating simple equations and using mathematical language to describe their thinking processes.

### Yuendumu leaf games: create a poster

In this final of these three lessons, students work in groups to reflect on and record their learning about representing number stories using Yuendumu leaf games and stories. They represent their leaf stories using pictures and numerals.

### Situations where addition, subtraction, multiplication and division can be used: K–2 Year A – Unit 16

This two-week unit provides students with opportunities to explore different situations where you can use addition, subtraction, multiplication, and division.

### Sometimes things move and change location: K–2 Year A – Unit 10

This unit develops understanding and skills of position and chance.

### Subtraction Year 3 & 4 - Calculate

This activity is designed to encourage students to develop and explain different strategies to solve subtraction problems.

### Park Ranger Problem Solving: An ‘Addition & Subtraction’ Rich Task for Years 3–4 - Calculate

The aim of this task is to provide a rich, contextual activity through which students can begin to explore the addition and subtraction of one- and two-digit of numbers in everyday contexts.

### Salute - Calculate

This game gives students opportunities to practise addition and subtraction strategies and develop algebraic thinking by finding unknown values in additive equations.

### Smaller numbers can be found hiding in bigger numbers: K–2 Year A – Unit 4

Smaller numbers can be found hiding in bigger numbers – develops student knowledge, understanding and skills in using combinations of numbers.

### The Mathscots: Level 2 Teaching Guide

This teaching guide provides a range of associated activities for each of the Mathscots episodes at Year 2. The guide contains a summary of the mathematical focus in each episode, a range of scaffolded learning experiences for before, during and after viewing each video, activities for families at home, and sets of printable ...

In this lesson, students learn about place value and how it extends beyond whole numbers. Students play a board game that draws on their knowledge of adding decimals to tenths, hundredths and thousandths with and without regrouping.

### Collections of objects can be changed: K–2 Year A – Unit 9

This two-week unit develops student knowledge, understanding, and skills of combining and separating quantities.

### The Mathscots: Buying a Dog Coat

In this animated video, Prime the puppy considers money and financial mathematics when shopping for a new dog coat. The mathematical focus is on understanding that the value of Australian coins is not related to size; describing the features of coins that make it possible to identify them; and developing a range of mental ...

### Addition and subtraction: Year 2 – planning tool

This planning resource for Year 2 is for the topic of Addition and subtraction. Students explore and test a range of computation strategies to solve additive situations – situations involving addition and subtraction.

### Place value: Year 3 – planning tool

This planning resource for Year 3 is for the topic of Place value. Students consolidate and deepen place value knowledge of two- and three-digit numbers. They do this by partitioning, rearranging and regrouping numbers to help in addition and subtraction calculations.