Question

(-23) + (+12) =
(-16) + (-7) =
(-7) * (+22) =
(+21) * (+22) =
(+399) + (-19) =
(+22) + (+22) =
(+9) -(-6) =
(+7) + (+8) -
(-9) * (+6) =​

Answer 1

Respuesta:

(-23) + (+12) =

=-23 + 12

=-11

(-16) + (-7)

=-16 - 7

=-23

(-7) * (+22)

=-7×(+22)

=+124

(+21) * (+22)

=+21×(+22)

=462

(+399) + (-19)

= +399-19

=+380

(+22) + (+22)

=+22+22

=+44

(+9) -(-6)

=+9+6

=+15

(+7) + (+8) -(-9) * (+6)

=+7+8+9×(+6)

=+24×(+6)

=+144