Question

Efectuati :
a) 7230 : 30 × 7 - 27 × 30 + 123
b) (33 + 33 : 11 + 333 : 3) × 100 - (999 : 111) : 9
c) ((122 × 3 )× 4+5)×6 +7×8=

Answer 1

a)241x7-810+123=
=1687-810+123=
=877+123=1000

b)(33+3+111)x100-9:9=
=147x100-1=
=14700-1=14699

c)[366x4+5]x6+56=
=[1464+5]x6+56
=1469x6+56=
=8814+56=8870