Question

a190b
(12) $17 - 3 =$
(13) $17 - 7 =$
(14) $17 - 6 =$
(15) $17 - 9 =$
(16) $17 - 8 =$
(17) $18 - 3 =$
(18) $18 - 5 =$
(19) $18 - 8 =$
(20) $18 - 4 =$
(21) $18 - 7 =$
(22) $18 - 9 =

Explanation:

(12)

Step1: Subtract 3 from 17

$17 - 3 = 14$

Step1: Subtract 7 from 17

$17 - 7 = 10$

Step1: Subtract 6 from 17

$17 - 6 = 11$

Answer:

14

(13)