Download KEY VOCABULARY:

Integer Notes
Counting Numbers include all the numbers we say when we count
beginning with 1 (1,2,3,4,5...)
Whole Numbers include all the counting numbers plus 0.
.Integers include all whole number and their opposites.
Neqative numbers are all less than zero.
Positive numbers are all greater than 0.
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I0-9 .S -7 ÿ -5 4 -ÿI --2 -! O. ! ÿ 3, 4 5 6 7 8 9 ÿ0
KEY VOCABULARY:
Negative:
Positive:
1. loss
1 gain
2. below zero
2. above sea level
3. goes down
3. goes up
4. withdraw
4. deposit
5. decrease
5. increase
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Integers
Write an iÿteger to represent each situation.
:t. 68 degrees abov___e zero
2. 3 degrees below zero
3. 77 feet belo__ÿw sea level
m
.
4.
6 points in a game
12 feet above sea level
6. a 14-foot dro£_p-
a $30ÿ
8. earnings of $28
Segve each problem.
9. A fish is located ten feet below sea level. What integer can you write
to represent the location of the fish? - ÿ iÿ
&O,
Alison is recording each play in a football game. What integer can.she
write to represent a Ios.__ss of nirle yards?
ÿ °l
//
l&,
A ba.by gained four pounds. What integer can you write to show the change
in the baby's----ÿweight?
Iÿ
12. Rose ÿ0 from her savings account. What integer can she write
to represent the withdrawal? ÿ [ b'O
-'!3,
&4.
A diver descends 14 feet below the surface of the water. She wants to
photograph a school of fish that are 25 feet below her. Write an expression
/that can be used to find the depth of the school of fish. ._ / t{._ :2- !;- b ÿ (A repairman got on an elevator 3 floors above ground level, ]he elevator
went down 2 floors, wentup 14 floors, and then went down 6 floors. Then the
repairman got off the elevator, Write an expression that can be used to find the
floor of the building on which the repairman last stopped, ÿ - ÿ 4- I hÿ - t_#
PeOples Publishing Group
Copying is illegal.
Chapter 1 o Understanding Numbers and Operations with Whole Numbers ÿ5
Integers
DIRECTIONS Read each question. Then circle
the letter for the correct answer.
Victoria's savings decreased by
tl:ty-thro, e dollars. Which integer
represents the decrease?
uring a storm, the Chanagua River rose
4 feet and then later dropped 5 feet and then
! foot to its current depth. Which expression
can be used to find the change in the depth
of the river?
A 43
Z43
F
4-5+2 I
C +43
D
2
-34
Which integer can be used to show a aÿ&ÿ_ of
twenty.four tons?
+24
.G +20
-20
j
Joe's score in a ÿ" On his next
turn he got 4 points. Then he lost 2 points.
Which expression can be used to find Joe's
total score?
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A .8-2
4+4+2
-24
_4+4-2
Which expression is NOT be
D 4-4+2
represented by - 20?
A Aloss of 20 points
B
20 degrees ÿ zero
Driving 20 miles 5ÿ'5ÿ-zlÿÿ
D
An elevation 20 feet ÿ sea leve!
During one week, Jos6 made aÿt of
200 dollars, a wÿ of 40 dollars, a
1 of 70 dollars, and a ÿ of
20 dollars. Which expression can be used
to find the change in Jos#s balance duriug
the week?
-200 + 40 + 70 - 20
200-40-70+20
/ÿ -200-40-70+20
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M6asurinÿ ÿJpÿ to the Texas Essential Knowledge and S
NAME
12-1
DATE
PERIOD
Skills Practice
Ordering Integers
Replace each • with < or > to make a true statement.
1. -9 ÿ8
7. 5ÿ -5
10. -57ÿ-75
2. Oÿ -1
3. -6 ÿ6
5, 12)-21
6. -12ÿ-10
8. -839(-80
9. -9 ( 12
11. -56 ÿ 56
Order each set of integers from least to greatest.
13. 2, -6, -2, 0
14. 9, -8, 4, -9
q
--ÿ) -2--) b 9,5.-,ÿ, 9, lO, -ÿ, o
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E
o
0
5-
0ÿ
Order each set of integers from greatest to least.
17. 5, -3, -11, 9
18. -3, 2, -4, -17
19. 14, -16, 9, -10, 0
20. -11, -8, 24, -20, 11
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Chapter 12
11
Glencoe MAC1