a) 25 . 29 + 52 . 22 . 15 + 11 . 25
b) 20160 + 12016 . ( 32 . 3 – 24 : 8 )
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1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37
=(1+37)x37:2
=703
1*2*3*4*5*6*7*8*9*10*11*12*13*14*15*16*17*18*19*0*20*21*22*23*24*25*26*27*28*29*30*31*32=0
a, \(\dfrac{90}{37}-\dfrac{38}{25}-\dfrac{8}{25}-\dfrac{4}{25}\)
= \(\dfrac{90}{37}\) - \(\dfrac{38+8+4}{25}\)
= \(\dfrac{90}{37}\) - 2
= \(\dfrac{16}{37}\)
\(\dfrac{24}{29}\) + \(\dfrac{32}{41}\) + \(\dfrac{34}{29}\) + \(\dfrac{50}{41}\)
=(\(\dfrac{24}{29}\) + \(\dfrac{34}{29}\)) + (\(\dfrac{32}{41}\) + \(\dfrac{50}{41}\))
= \(\dfrac{58}{29}\) + \(\dfrac{82}{41}\)
= 2 + 2
= 4
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50=1275
a) 25 . 29 + 5^2 . 2^2 .15 + 11 . 25
=25 . 29 + 25 . 4 .15 + 11 . 25
=25 . 29 + 25 . 60 + 11 . 25
=25.(29 + 11 + 60)
=25 . 100
= 2500
b) 2016^0 + 1^2016 . (3^2 . 3 - 2^4 : 8)
= 1 + 1 .(9 . 3 - 16 :8)
= 1 + 1 .(27 - 2)
= 1+ 1.25
= 1+25
= 26