UNIT 2
Representing, Comparing,
and Ordering Numbers
Quick Review
294.
>Here are some ways to represent the number 135
Standard Form
155 294
Expanded Form
Words
one hunrec thiry-19ve thousn
two hur’the ninety-four
100 000
30 000
+
+
5000
200
+
+
90
+
Canada’s
> This place-value chart shows the population of 3 of
numbers from
provinces in 2001. You can use the chart to order the
least to greatest.
Hundred
Thousands
9
Province
Nova Scotia
Prince Edward
Island
Saskatchewan
Ten
Thousands
0
One
Thousands
8
Hundreds
Tens
Ones
0
0
7
3
7
5
8
2
9
9
3
4
3
1*—
9
135 294 has the least
hundred thousands.
It is the least number.
978 933 has the most hundred
thousands and ten thousands.
It s the greatest number.
The order from least to greatest is: 135 294,908 007,978 933
Try These
1. Write each number in standard form.
a) 200 000
I-
80000
+
4000
+
200
+
10
+
4
-____
b) twenty-eiqht thousand one hundred sixty-two
2.. Order the numbers from greatest to least.
I0
a) 185042
167493
84219
b) 366517
366 211
366 499
4
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Practice
Use the data in the table.
1.
Arrange the countries in order from least to greatest coastline.
Country
Length of Coastline
(kilometres)
Australia
Brazil
Canada
2.
Find two
6-digit
25 760
7491
243 791
Indonesia
54 716
Norway
21 925
Philippines
36 289
United States
19 924
numbers in a newspaper or book.
Write each number in standard and expanded form.
a)
b)
3. Write each number in words.
a) 148003
b) 72 242
4. Write the
value of
each underlined digit.
a)
534649
b) 86212
c)
687123
d) 158582
Stretch Your Thinking
1 Use 6 of the digits from 1 to 9 to make each number. Use each digit only once.
a) the greatest possible even number
b) the least possible odd number_
c) the greatest possible number with 3 ten thousands
11