Question

III.Say true or false...
11. 15 - (-18) is the same as 15+18.
12.(-100) × 0 ×20 = 0.
13. (-30) ÷ (-6)= -6.
14. The co-efficient ab in the trem 15 abc is -15.
15.when y= -1,the value of the experience 2y -1 is 3.
Give the correct answer please....​

Answer 1

Answer:

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Answer 2

11) True

Since, - × - = +

12) True

Any number multiplied by zero equals zero.

13)False

Negative integer divided by a negative integer results positive.

14)False

Co-efficient of ab in 15abc is 15c.

15)False

On substituting y=-1 in equation 2y-1 results -3.