Question

calculati: 25-{54:[(24-18:3):2]+54:9×3}=

Answer 1

$25-{54:[(24-18:3):2]+54:9*3}=$
$25-{54:[(24-6):2]+54:27}=$
$25-[54:(18:2)+2]=$
$25-[(54:9)+2]=$
$25-(6+2)$
$25-8=17$

Answer 2

25-{54 :[24-6):2]+54:9×3
25-(54:18:2)+6×3
25-(3:2)+18
25-1,5+18
23,5+18
41,5