Question

-
a) 19-(-3). [5 – (+8)]
c) 12 + (-5): [(-9) + 8]
b) (-2). [44)-(-6)]-9
d) (31 – 9): [2 - (-9)]
+

Answer 1

a)19−−3(5−8)

=10

Explicacion:

19−−3(5−8)

=19−(−3)(−3)

=19−9

=10

c)12−5(−9+8)

=17

Explicación:

12−5(−9+8)

=12+(−5)(−1)

=12+5

=17

b)(−2)(44)−(−6)−9

=−91

Explicacion:

(−2)(44)−(−6)−9

=−88−(−6)−9

=−82−9

=−91

d)(31−9)(2−(−9))

=242

Explicacion:

(31−9)(2−(−9))

=22(2−(−9))

=(22)(11)

=242