Adding
40 + 40 =
80
12 - 6 =
6
2 x 0 =
0
11, ? 13, 14, 15, 16
12
a + b = (when a = 10, b= 3)
13
120 + 10 =
130
50 - 25 =
25
6 x 2 =
12
? 15, 16, 17, 18
14
c - d = (when c =25, d = 5)
20
45 + 95 =
140
$20.00 - $15.00 =
$5.00
25 x 2 =
50
25, 27, ? 31, 33
29
g - h = (g = 18, h = 8 )
10
125 + 225 =
350
$32.95 - $2.95 =
$30.00
25 x 3 =
75
55, 65, ? , 85, 95
75
a + b - c = (when a =30, b = 5, c = 2)
33
1,001 + 452
1,453
10,000 - 1 =
9,999
25 x 4 =
100
?, ?, 6, 8, 10
2 and 4
a + b + c - d = (when a =22, b= 11, c= 3, d= 6)
30