Question

[(4+16×2)×5-10]×5-10]×100=

Answer 1

32+4=36
36×5= 180
180-10=170
170×5= 850
850-10=840
840×100=84000

Answer 2

[{20*2}*(-5)]*100
{40*(-5)}*100
(-200)*100
=-20000