Question

va rogggg repede am teza

Answer 1

a)45×(16+25)=45×41=1845
b)121:(45×10-439)=121:(450-439)=121:11=11
c)[(314:2-57)+25]:25-5=(157-57+25):25-5=(100+25):25-5=125:25-5=5-5=0
d){[(120+2×15):75+4]×10^2-40×5}:80={[(120+30):75+4]×100-200}:80=[(150:75+4)×100-200]:80=[(2+4)×100-200]:80=(6×100-200):80=(600-200):80=400:80=5
e)(8^4:4^5+27^9:3^24+2^12:2^11):3=[(2^3)^4:(2^2)^5:(3^3)^9:3^24+2^(12-11)]:3=(2^12:2^10+3^27:3^24+2^1):3=(2^2+3^3+2):3=(4+27+2):3=33:3=11
f)4500-5×450-5×(5^55:25^27+10^2:4)×(1×2^2×3^3-3×6^2+7):42=4500-2250-5×[5^55:(5^2)^27+10^2:4]×(1×4×27-3×36+7):42=4500-2250-5×(5^55:5^(2×27)+100:4)×(4×27-108+7):42=4500-2250-5×(5^55×5^54+100:4)×(108-108+7):42=4500-2250-5×(5^1+100:4)×(0+7):42=4500-2250-5×(5+25)×7:42=4590-2250-5×30×7:42=2250-150×7:42=2250-1050:42=2250-25=2225
g)48×(2×9-2×3^2)=48×(18-2×9)=48×(18-18)=48×0=0
l)9+8×{76-5×[4+3×(3^2-2^3)=9+8×[76-5×(4+3×9-8)=9+8×[76-5×(4+3×1)]=9+8×[76-5×(4+3)=9+8×(76-5×7)=9+8×(76-35)=9+8+41=17+41=58
sper ca te-am ajutat !