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Module contents
Introduction
1. Place value of large numbers
2. Some properties of whole numbers
3. Adding and subtracting
4. Multiplying and dividing
5. Order of operations
6. Rounding and estimation
Outcomes
•
To say and write large numbers to billions.
•
To describe numbers as odd or even, prime or composite.
•
To find factors and multiples of numbers.
•
Perform all four operations with whole number and integers.
•
Perform mixed operations following the correct order of operations.
•
Use estimation to obtain approximate answers.
Check your skills
This module covers the following concepts, if you can successfully answer these questions, you do not need
to do this module. Check your answers from the answer section at the end of the module.
1.
(a)
Write 345 109 050 in words
(b)
Write two billion, five hundred and thirty seven thousand, two hundred and fifty in digit
form.
2.
(a)
Describe 51 as odd or even, prime or composite.
(b)
List the factors of 24.
(c)
List the first 5 multiples of 7.
3.
Perform the operation indicated.
(a)
2345 + 94 + 559
(b)
16 145 – 945
(c)
383 x 73
(d)
4752 ÷ 9
4.
Perform the operation indicated.
(a)
⁻234 + ⁻109
(b)
405 – ⁻259
(c)
⁻175 x ⁻7
(d)
8283 ÷ ⁻11
5.
Calculate the answer to this question and check using estimation.
825 + 32 x (18 + 42)
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[last edited on 17 March 2015] CRICOS Provider: 01241G