Answer:

1. 12

sol. ( 11 + 37) ÷ ( 6 - 2 )

48 ÷ 4

= 12

2. 8

sol. ( 8 + 46 - 6) ÷ 6

8 + 46 = 54. (addition first [ GEMD(A)S ])

54 - 6 = 48 (subtraction [GEMDA(S) ] )

48 ÷ 6 = 8

3. 450

sol. 5 × 10 × ( 7 + 2 )

( 7 + 2 ) = 9. ( parenthesis [ (P)EMDAS]

5 × 10 = 50. ( multiplication [ PE(M)DAS]

50 × 9 = 450

4. 6

sol.

( 14 + 36 - 2 ) ÷ 8

14 + 36 = 50 ( addition) (A)

50 - 2 = 48. ( subtraction)

48 ÷ 8 = 6

5. 224

sol. (17 + 2) × 12 - 4

17 + 2 = 19

19 × 12 = 228

228 - 4 = 224

6.22

sol. (11 + 5) + 12 ÷ 2

11 + 5 = 16

12 ÷ 2 = 6

16 + 6 = 22

hope it helps!