# place value

## 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.

## Getting The Point

- Units of Work
- Number and Algebra
- Level Three

This unit explores the relationships between decimals and whole numbers and fractions. A number of representations are used including double number lines, ratio tables and place value tables. The main objective is to link students’ knowledge of fractions with the decimal system.

## Nine Tiles

- Problem Solving Activities
- Number and Algebra
- Level Six

Guess and check the solution to a number problem;

Explain the effect of "carry-overs" in addition problems.

## How Many Numbers ?

- Problem Solving Activities
- Number and Algebra
- Level Six

Devise and use problem solving strategies to explore situations mathematically (be systematic, make a list).

## Adding Ten Tiles II

- Problem Solving Activities
- Number and Algebra
- Level Six

Use the numbers facts with digits to solve a problem

Devise and use problem solving strategies to explore situations mathematically (guess and check, be systematic, look for patterns, think, use algebra).

## Base 3

- Problem Solving Activities
- Number and Algebra
- Level Five

Write numbers in base 3

Do arithmetic in base 3

Explain the "links" between base 3 and decimal numbers

Devise and use problem solving strategies to explore situations mathematically (be systematic).

## Adding Ten Tiles I

- Problem Solving Activities
- Number and Algebra
- Level Five

Use the numbers facts with digits to solve a problem;

Use a systematic approach to get the number of ways that four numbers can add to 9.