Question

efetue os cancelamentos e calcule:
A)16-8-4+16-4+8=
B)-23-7+17+6-4+7=

Answer 1

A)
= 16 - 8 - 4 + 16 - 4 + 8
= 16 - 12 + 12 + 8
= 4 + 20
= 24

B)
= - 23 - 7 + 17 + 6 - 4 + 7
= - 30 + 23 + 3
= - 30 + 26
= - 4