Topic 1.1: The Decimal Number System and Place Value (Whole Numbers)

Understanding Numbers - Activity Two


Finish writing these numbers in “Expanded Notation”:
a) 7 538 = (7 x 1 000) + (5 x ) + (3 x 10) + (8 x 1)

b) 592 683 = 500 000 + + 2 000 + 600 + +
c) 4 605 394 = ( x 1 000 000) + (6 x ) + (5 x )
+ ( x 100) + (9 x 10) + ( 4 x )

Write the numbers that are shown in the following Expanded Notations:
d) 7 000 + 900 + 20 + 6 =
e) (2 x 1 000 000) + (7 x 10 000) + (5 x 1 000) + (8 x 100) + (4 x 1) =
f) 70 000 000 + 3 000 000 + 60 000 + 8 000 + 200 + 40 + 7 =

Place the digits from the following numbers into their appropriate Place Value columns in the table below.
g) 793 524
h) Five million, two hundred and sixty one thousand, four hundred and nine
i) 8 004 792
j) 2 690 004
k) Nine million, seventy three thousand and eight

  7th Place 6th Place 5th Place 4th Place 3rd Place 2nd Place 1st Place
  Million Hundred Thousand Ten Thousand Thousand Hundred Ten One
  1 000 000 100 000 10 000 1 000 100 10 1
g)
h)
i)
j)
k)

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