Đáp án:
h)66.25+5.66+66.14+33.66
=66(25+5+14+33)
=66.77
=5082
i)12.35+35.182-35.94
=35(12+182-94)
=35.100
=3500
m)-|-33|+(-15)+20-|45-40|-5
=-33+(-15)+20-5-5
=-48+20
=-28
o)500-{5[409-(2^3.3-21)^2]+10^3}:15
=500-{5[409-(8.3-21)^2]+1000}:15
=500-[5(409-4^2)+1000]:15
=500-[5(409-16)+1000]:15
=500-(5.393+1000):15
=500-2965:15
=500-197
=303
p)205-[1200-(4^2-2.3)^3]:40
=205-[1200-(16-6)^3]:40
=205-(1200-10^3):40
=205-(1200-1000):40
=205-200:40
=205-5
=200
CHÚC BN HỌC TỐT !!!!!!