Question

23 efetue as subtraçoes
:
a 1-251-1+17) - a) 17101-6-231 -
bX+ 481-1-56)
5957201-(+22) =
1-601-1-31
i 1-32-(-51
01671501-1780) ill-27) +-301
NO-1-15
D1-101-1+12)
1-2-1-64) = S71-97-17287​

Answer 1

Resposta:

21-6-7-(-15)-2-(-10)

=-27-7+15-2+10

=-34+15-2+10

=-19-2+10

=-21+10

=-11

15-2-6-(+3)-(-1)

=13-6-3+1

=7-3+1

=4+1

=5

-45+7+8(-8)+(-3)-2-4+1

=-38-64-3-2-4+1

=-102-3-2-4+1

=-105-2-4+1

=-107-4+1

=-111+1

=-110

d 20-(-5)-12-1-(-3)

=20+5-13+3

=25-10

=15

10-(-12)-(-8)+(-9)-6+1+5

=10+12+8-9-6+1+5

=22-1-6+6

=21

 18-(-18)+7-(-7) +0-4

=18+18+7+7-4

=36+14-4

=36+10

=46

Explicação passo-a-passo: