Review Chapter. Weerawattk.wordpress.com. Read each of the following in words. 38. thirtyeight. 72. negative seventytwo. 691. Six hundred and ninetyone. Read each of the following in words. 745. negative hundred seven and fortyfive. 2813. two thousand eight hundred
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Review Chapter
Weerawattk.wordpress.com
Read each of the following in words.
38
thirtyeight
72
negative seventytwo
691
Six hundred and ninetyone
Read each of the following in words.
745
negative hundred seven and fortyfive
2813
two thousand eight hundred
and thirteen
3254
Negative three thousand two hundred
and fiftyfour
Integer
1,2,3,4,5,…
positive integer
1,2,3,…
negative integer
2,4,6,8,…
even number
Integer
1,3,5,7,…
odd number
2,3,5,7,11,…
prime number
number line
To compare numbers we use the following symbols
Seven is greater than three.
Seven eight and nine are greater than or equal to seven.
two is less than nine.
One two and seven are less than or equal to seven.
seven is equal to seven.
(
0, 4, 2, 5, 3
Arrange the following sets of integers in descending order.
Arrange the following sets of integers in
ascending order.
5, 3, 0, 2, 4
4, 2, 0, 3, 5
HCF: Highest Common Factor
Find the HCF of 12 and 32
The highest common factor (HCF)of 12 and 32 is 4.
Find the HCF of 12 ,32 and 18
The highest common factor (HCF)of 12 ,32 and 18 is 2.
LCM: Lowest Common Multiple
Find the LCM of 12 and 32
The lowest common multiple (LCM)of 12 and 32 is 96.
Find the LCM of 18 ,45 and 6
The lowest common multiple (LCM)of 18 ,45 and 6 is 180.
Addition subtraction Multiplication and Division of integer
The University of Texas at Dallas
+
plus

minus
x
times
divided by
(1) 1 + 3
=2
Negative one plus three is equal to two.
(2) (6) + (3)
=9
Negative six plus negative three is equal to
negative nine.
(3) 12 – (3)
= 9
Negative twelve minus negative three is equal to
negative nine.
(4) 7  (2)
= 9
Seven minus negative two is equal to nine.
(5) 10 x 3
=30
Negative ten times three is equal to negative thirty.
(6) 15 (3)
=5
Fifteen divided by negative three is equal to
negative five.