AC9M6N06
Number > Multiplication
Australian Curriculum Version 9 Says:
Multiply and divide decimals by multiples of powers of 10 without a calculator, applying knowledge of place value and proficiency with multiplication facts; using estimation and rounding to check the reasonableness of answers.
What this means
Multiplying and dividing decimal numbers by 10, 100, 1000 …
- Note decimal points do not move.
- A number slide will help to establish these relationships.
- Students were last exposed to this idea in Year 4 with whole numbers.
Tips
- Converting from metres to centimetres (and vice versa) involves multiplication/division by 100 (102), converting kg to g involves multiplying by 1000 (103).
- Some powers of ten are:
100 = 1, 101 = 10, 102 = 100,
103 = 10 x 10 x 10 = 1000, etc.
Interactives & Downloadables
Resources & Manipulatives
-
Teaching Place Value Year 5+
$22.00 – $129.00 inc. GST -
Calculators in Classrooms
$22.00 – $129.00 inc. GST
Beyond
Quick Guides (AC9) Purpose
These Quick Curriculum Guides have been designed to take a look at the new Australian Mathematics Curriculum (AC9), explain terminology and provide interpretations. The Notes version (downloadable) has one card per page with some lines for your own personal notes
Year 7+?
Our Quick Guides end at Year 6, but if you look at the bottom of the Year 6 cards you will see that they are linked onwards to Year 7. We recommend you visit the appropriate Curriculum pages on ACARA’s site.
Disclaimer
These documents serve as general advice only and do not take into account your specific needs and conditions. While best care has been taken in compiling these materials, mistakes may exist. Australian Curriculum version 9 materials used under Creative Commons licence from ACARA. Readers should always refer back to the curriculum itself and the state-based curriculum that is relevant for you. These documents copyright of A-Z Type (Dr Paul Swan). Copies may be downloaded
These Quick Curriculum Guides have been designed to take a look at the Australian Mathematics Curriculum (AC9), explain terminology and provide interpretations.
Narelle and I have used our professional judgement to put forward what is appropriate for students at this year level.
Authors: Dr Paul Swan & Narelle Rice
We would like to also thank Linda Marshall and David Dunstan for comments and assistance.
These documents serve as general advice only and do not take into account your specific needs and conditions. While best care has been taken in compiling these materials, mistakes may exist.
Australian Curriculum version 9 materials used under Creative Commons licence from ACARA. Readers should always refer back to the curriculum itself and the state-based curriculum that is relevant for you.
This document is copyright of A-Z Type (Dr Paul Swan). A copy of this document may be downloaded from www.drpaulswan.com.au.