Question

a) (1+4)×[21:(16-13)+5]+35. b) 17×4-(3×6-15)×(45-39) c) 12×7-(60+3×11):(1+2) d) 11×7-[(41-39)×47-16]:2 e) 7×[(4+5)×3-80:(1+3)]​

Answer 1

Răspuns:

a) 5×(7+5)+35=5×12+35=60+35=95

b) 68-(18-15)×6=68-18=50

c) 84-99÷3=84-33=51

Answer 2

Răspuns:

a)5×(21÷3+5)+35=

5×(7+5)+35

5×12+35=

60+35=95

b)17×4-(3×6-15)×(45-39)=

68-(18-15)×6=

68-3×6=

68-18=50

c)12×7-(60+3×11)÷(1+2)=

84-(60+33)÷3=

84-93÷3=

84-31=53

d)11×7-[(41-39)×47-16]÷2=

77-(2×47-16)÷2=

77-(94-16)÷2=

77-78÷2=

77-39=38

e)7×[(4+5)×3-80÷(1+3)]=

7×(9×3-80÷4)=

7×(27-20)=

7×7=49