Question

solve the following

a. (-15) - (-18)
b. (-380) + (-270)
c. (-7) + (-9) +4 +6 ​

Answer 1

Answer:

1. +3

2.−650

3.4

Step-by-step explanation:

1. 15)-(-18)

-15 + 18

+3(here the symbol we use this positive because 18 is greater than 15 and 18 is having a positive symbol)

2.(−380)+(−270)

=−380−270

=−650

3.(−7)+(−9)+4+16

=−7−9+4+16----------(multiplication of signs "+×−=")

=−16+20=4

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Answer 2

Answer:

a) (-15) - (-18)

or , -15+18 = 3

b) (-380) + (-270)

or, -380 - 270 = - 650

c) -7 -9 +4+6

or, -16+ 10 = -6