Question

Efectuati...:({1560-15.(67+11.3)}.6-{117+21:(49-6.7)}:10

Answer 1

((1560-15×(67+33))×6-117+21÷(49-42))÷10=((1560-15×100)×6-117+21÷7)÷10=(1560-1500)×6-117+3)÷10=60×6-117+3)÷10=360-120)÷10=240÷10=24

Answer 2

$[1560-15*(67+33)]*6-[117+21:(49-42)]:10=$
$[(1560-15*100)]*6-(117+21:7):10=$
$(1560-1500)*6-(117+3):10=$
$(60*6-117+3):10=(360-120):10=$
$240:10=24$