Question

3- Calcule as expressoes: a) 3 + 2 x 4 + 1 b) 4x5-2 + 1

Answer 1

Resposta:

a) 3+2×4+1

=

3+8+1

=

12+1

=

13

b)4×5-2+1

=

10-2+1

=

8+1

=

9

espero ter ajudado