Question

6. Add
(a) -15 and -24
(b) 40,-7 and -10 7.

Subtract

(a) -55- (-17)
(b) -23 from 40​

Answer 1

Answer:

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Step-by-step explanation:

add:-

(a). -15 and -24

=  -15+(-24)

=  -15-24

=  -39.

(b). 40,-7 and -10, 7.

=   40+(-7)+(-10)+7.

=   40-7-10+7

=   40-7-17

=   33-17

=   16.

subtract:-

(a). -55-(-17)

=   -55+17

=   -38.

(b). -23 from 40

=   -23-40

=   -63.