Adding Numbers Flashcards
-7+(+10)
3
30+(-60)
-30
-7-10
-17
(+)/(-)
-
(-)/(-)
+
3+9
12
What strategy do we use to determine the sign of a problem?
Tic-tac-toe trick
55+12
67
-12+3+9
0
(-)(-)(-)
-
Same sign ____, different sign we ______.
add; subtract
7+10
17
34-35
-1
(+)/(+)
+
-68-35
-103
-3-(-9)
6
55-89
-34
123+123
246
-3-9
-12
30-60
-30
(+)(+)
+
-7+(-10)
-17
-34-(-35)
1
-12-3-9
-24
-30-60
-90
(-)/(+)
-
-34+35
1
-55+(-12)
-67
-123+123
0
-99-108
-207
-7-(-10)
3
-123+(-123)
-246
89-55
34
99-108
-9
-4-5
-9
99+108
207
-34-35
-69
-2-3-5
-10
3-9
-6
54+11
65
-85+69
-16
Same sign add, different sign we ______.
subtract
-30-(-60)
30
Same sign _____, a different sign we subtract.
add
-99+108
9
-3+(+9)
6
-12-3-5
-20
-30+60
30
7-10
-3
3-(+9)
-6
(-)(-)
+
Which side of the number line do negative numbers go to?
Left side
34+35
69
68+35
103
-68+35
-33
Which side of the number line do positive numbers go to?
Right side
-4+(-5)
-9
85-69
16
