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a: =5-78*32
=5-2496
=-2491
b: \(=6\left(9-6\right)=6\cdot3=18\)
c: \(=46\cdot\dfrac{\left(123-42\right)}{81}=46\)
d: \(=181+3-84+8\cdot25\)
=100+200
=300
e: \(=64\cdot35+140\cdot84-1=2240-1+11760\)
=14000-1
=13999
f: \(=3^3+25\cdot8-1=26+200=226\)
g: \(=3+2^4+1=16+4=20\)
h: \(=36:4\cdot3+2\cdot25-1=27+50-1=27+49=76\)
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a, 24.( 5 - 178 ) + 178 .(10 + 24)
= 24.5 - 24 .178 + 178 .10 + 178.24
= (24.5 + 178.10) -( 24.178 - 178.24)
=(120 + 1780) - 0
= 1900
b ,29.(-101)
= 29.( -100 -1)
= - 2900 - 29
= -2929
c, (-56 + 130) - (43 - 56) - (-20 - 43)
= -56 + 130 - 43 + 56 + 20 + 43
= (-56 + 56) - (43 - 43) + ( 130 + 20)
= 0 - 0 + 150
= 150
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a: =24*5-24*178+178*10+178*24
=24*5+178*10
=1780+120=1900
b: =29*(-100)-29=-2900-29=-2929
c: =-56+130-43+56+20+43
=130+20=150
![](https://rs.olm.vn/images/avt/0.png?1311)
(-5)+12+(-7)+178+(-179)+1+(-319156)=-319156
tick nha Minh
![](https://rs.olm.vn/images/avt/0.png?1311)
B = 5 + 25 + 125 +...+1953125
B = 51 + 52 + ...+ 59
B= \(\frac{5^{10}-5}{4}=2441405\)
89^5-156^5