addition
53
+
62
115
90-45
45
20
-
17
3
4x7
28
$5.86
-
$2.75
$3.11
44
+
58
102
63-15
48
16
-
8
8
8x8
64
$6.87
-
$4.22
$2.65
26
+
78
104
366-216
150
14
-
8
6
2x6
12
$12.75
-
$2.50
$10.25
355
+
15
370
850-500
350
35
-
17
18
4x9
36
$8.66
+
$20.00
$28.66
275
+
35
310
955-362
593
27
-
16
11
2x4
8
$150.00
+
$13.89
$163.89