Question

Exercise 1.5
1. 7 - 8+ (-2) + 3 (-4).
3. -11 --6 - (3 - 5(8 4 - 1)].
5. 14 + (3 of 2 - 3 + 4) - 9(5-3).
2. 9 - 17 - 24 + (8 + 6 x 2 - 16)).
4. (-3) X (-12) = (-4) + 3 x 6.
5. 14÷(3of2-3+4)-9(5-3)​

Answer 1

Answer:

okk

Step-by-step explanation:

1. 7 - 8 + (-2) + 3 (-4).

= 7 - 8 - 2 - 12

= 7-22

= -15

2. 9 - 17 - 24 + (8 + 6 × 2 - 16).

= 9 - 41 + (8 + 12 - 16).

= 9 - 41 + 0

= -32

3. -11 - 6 - [3 - 5(84 - 1)].

= -11-6-[3-420-5].

= -17-[3-425].

= -17-(-422).

= -17+422

= 405

4. (-3) X (-12) = (-4) + 3 × 6.

36 = -4+18

36 = 12

3.

5. 14÷(3of2-3+4)-9(5-3).

= 14÷(6+1)-45-18.

= 14÷7-63.

= 2-63.

= -61.