Answer:

1. 6

2. 18

3. 24

4. 17

5. 16

Step-by-step explanation:

1. 15 - (2 +7)

= 15 - 9

= 6

2. 18 - (2+1) + 3

= 18 - 3 + 3

= 15 + 3

= 18

3. 15/5 (6) + 8 - 2

= (3)(6) + 8 - 2

= 18 + 8 - 2

= 26 - 2

= 24

4. 8/2 (4) + (5)(2)/10

= (4)(4) + (5)(2)/10

= 16 + (5)(2)/10

= 16 + 10/10

= 16 + 1

= 17

5. 56 - 2 ( 20 + 12/4 (3) - (2)(2) ) + 10

= 16

Answer:

1. 6

2. 15

3. 12

4. 17

5. 16