Summary Operations with Integers

0.1 " Operations with Integers
Definition: An integer is a whole number (not a fractional number) that can be positive, negative, or zero.



-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10

Adding and subtracting: If there are two signs next to each other, show a step simplifying the signs.
a) 5 + (+8) b) 5 - (+8) c) —5 + 8
r 54 g - g _ S

^ I g> - -3 ^ 3>

d) 5 + (-8) e) 5 - (-8) 1) -5—8
7-"“* \
= 5-8 - •+ 6
o
-

Rules/Notes:
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i Cy r\^y s< s
Sarvuz. Si^f\s - €A\t 3J A> S-* \3fCtc3 o-r\
-(Cal. sAa . <3
(4) ( (C ■{ t (\K ~ '€J4’\f "'A '"W ■
(qf 2f'<



Multiplying and Dividing:
a) 8/4 b) (—7)(—5) c) 15 -r (—3) d) -4 - 9

^ Q - - 5 "
-- -3G
e) -.6,(-5)(-4) 6-8 g) -24 +(-8) C-4)(6)
« «■ l-V-Zl h)
-8
- 3o A 4)
o nw”"' n LjI
feC
-
- ' 12-0 iz }' I
Lj

Rules/Notes: 'j\o\vfVfy /
fY\A Number #1 Number #2 Result

0sj<2,{\ 4 + . + — «j—

a. ^ [— \/(2 ( c sa i 4 + — —
- + -—
- - 4_
— s/<2l_ r^sulA-