Question

1 calcule as expressões

a) 2×7+20÷5-(4-2).

b)25-(20÷2)×(10-5)

c) 30-(10-5)-(4-2)​

Answer 1

a) 2x7+20%5-(4-2)
2x7+20%5-2
2x7+4-2
14+4-2
14+2
16

B)25-(20%2)x(10-5)
25-10x(10-5)
25-10x5
15x5
75

C)30-(10-5)-(4-2)
30-5-(4-2)
30-5-2
25-2
23