Question

a107b
(11) 5 - 3 =
(12) 7 - 3 =
(13) 4 - 3 =
(14) 8 - 3 =
(15) 6 - 3 =
(16) 12 - 3 =
(17) 10 - 3 =
(18) 9 - 3 =
(19) 11 - 3 =
(20) 13 - 3 =

Explanation:

(11)

Step1: Subtract 3 from 5

$5 - 3 = 2$

Step1: Subtract 3 from 7

$7 - 3 = 4$

Step1: Subtract 3 from 4

$4 - 3 = 1$

Answer:

2

(12)