Question

7. Simplify: (i) (-18) + (-20)-(-18) - (17)
(iii) (-80) + (-20) - (85) + (-70)
(v) (-3) x (-5) (-8) X (-7)​

Answer 1

Answer:

Note:

Note: -×-=+

Note: -×-=++×+=+

Note: -×-=++×+=+-×+=-

I.

-18-20+18-17

-18-2-17

-20-17

-37

3.

-80-20-85-70

-100-85-75

-185-75

-250

5.

-3×-5×-8×-7

-15×-56

840

Step-by-step explanation:

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