Question

a)4·(5+7)=
b)-5·(-3+6-10)=
c)(-10 +30)÷5=
d)(2/5+1/3)÷3/4=

Answer 1

a) 4.(5+7)
20+28
48

b)-5.(-3+6-10)
15-30+50
-15+50
35

c)(-10+30)÷5
(20)÷5
4

d)(2÷5+1÷3)÷3÷4
0,4+0,33÷0,75
0,73÷0,75
0,97