Question

calcule:

a)8-15=
b)15-9-7=
c)-8-5-10=
d)-9-13=
e)-23+23=
f)+10+21=​

Answer 1

Resposta:

8-15 = -7

15-9-7 = -1

8-5-10 = -7

9-13 = -4

23+23 = 46

10+21 = 31