Even though numbers beyond tens of thousands are not mentioned in the Australian Curriculum, learning about large numbers at this level is useful to extend students' understanding of place value and the naming conventions for large numbers. Beyond hundreds, a new pattern of sets of three related places begins, starting with thousands in hundred thousands, ten thousands and (one) thousands. This is repeated in the millions place and beyond.

• ### Odometer Quick Start Guide

2pp. Features and functions of the Odometer Gadget: Count in 1s, 2s & 5s in any place up to millions and down to thousandths. Click the up or down arrow to show how the numbers in each of the places change.

• ### Number Popup Quick Start Guide

2pp. Features and functions of the Number Popup Gadget: Expand numbers with place value visually displayed

• ### Number Slide Quick Start Guide

5pp. Features and functions of the Number Slide Gadget: Multiply and divide numbers by powers of ten, with and without decimals.

• ### Scrolling Hundred Board Quick Start Guide

6pp. Features and funcitons of the Scrolling Hundred Board Gadget: A hundred board that scrolls from 0 to 2000. Scrolling arrows and options allow for counting, highlighting multiples and special numbers.