Unit 1: Sums and Differences of Rational Numbers
-215+ 145
-70
–14 × 13
-182
–2(–3 − 3g)
6 + 6g
22f = 396
f=18
–97.2 + –88.6
-185.8
1.5 × –47.4
-71.1
5n+7n+5n
17n
v − 109 = –89
v=20
–58 − –14
-44
–16.75 ÷ –0.5
33.5
4156 x 4151
4157
4u + 2 = 18
u=4
71.1 − –18.9
90
(2+9)×8–3
85
(118)15
1270
25 − 3n = 67
n=-14