Question

[Trần Tiến Đạt]

Tính      :

 A= [(- 8 ) + ( - 7 ) ] + ( -10) ;  

B = - ( - 299 ) + ( - 219 ) + ( -401 ) + 12

 C  = 555 + ( - 100)  + ( -80) + \(\left|-333\right|\)   

D = \(\left|-347\right|\) + ( - 40 ) + 3150 + ( - 307)

E= 98 . 42 – {50 . [(18 – 2³) : 2 + 3² ]}                         

F = - 80  - [ - 130 – ( 12 – 4 )²] + 2008⁰

G = 1000 + ( - 670 ) + 297 + ( - 330 )                         

H = 1024 : 2⁴ + 140 : ( 38 + 2⁵) – 7²³ : 7²¹

I  = \(\left|-129\right|\)-119+\(\left|2-31\right|\)                                           

K = 219 +573 + 381 – 173

L = 36 . 33 – 105 . 11 + 22 . 15                                    

N = 160 – ( 2 ³ .5² – 6 . 25 )

O = (44 . 52 . 60 ) : ( 11 . 13 .15 )                               

P = (2¹⁷ +15⁴) . ( 3 ¹⁹ – 2¹⁷ ) . ( 2⁴  - 4²)

Q = 100 + 98 + 96 + ….. + 4 +2 – 97 – 95 - …… -  3 – 1

Answer 1

[꧁_͏ͥ͏_͏ͣ͏_͏ͫ͏ ¡亗ᵛᶰシ๖ۣۜT๖ۣۜR๖ۣۜÂ๖ۣ...]

Giải:

\(A=\left[\left(-8\right)+\left(-7\right)\right]+\left(-10\right)=\left(-15\right)+\left(-10\right)=\left(-25\right)\) 

\(B=-\left(-299\right)+\left(-219\right)+\left(-401\right)+12=299-219-401+12=-309\) 

\(C=555+\left(-100\right)+\left(-80\right)+\left|-333\right|=555-100-80+333=708\) 

\(D=\left|-347\right|+\left(-40\right)+3150+\left(-307\right)=347-40+3150-307=2456\) 

\(E=98.42-\left\{50.\left[\left(18-2^3\right):2+3^2\right]\right\}\) 

\(E=4116-\left\{50.\left[\left(18-8\right):2+9\right]\right\}\) 

\(E=4116-\left\{50.\left[10:2+9\right]\right\}\)

\(E=4116-\left\{50.\left[5+9\right]\right\}\) 

\(E=4116-\left\{50.14\right\}\) 

\(E=4116-700\) 

\(E=3416\) 

\(F=-80-\left[-130-\left(12-4^2\right)\right]+2008^0\) 

\(F=-80-\left[-130-\left(12-16\right)\right]+1\) 

\(F=-80-\left[-130-\left(-4\right)\right]+1\) 

\(F=-80-\left(-126\right)+1\) 

\(F=47\) 

\(G=1000+\left(-670\right)+297+\left(-330\right)=1000-670+297-330=297\) 

\(H=1024:2^4+140:\left(38+2^5\right)-7^{23}:7^{21}\) 

\(H=2^{10}:2^4+140:\left(38+32\right)-7^2\) 

\(H=2^6+140:70-49\) 

\(H=64+2-49\) 

\(H=17\) 

\(I=\left|-129\right|-119+\left|2-31\right|=129-119+\left|-29\right|=10+29=39\) 

\(K=219+573+381-173\) 

\(K=\left(219+381\right)+\left(573-173\right)\)

\(K=600+400\) 

\(K=1000\)

\(L=36.33-105.11+22.15\) 

\(L=36.33-35.3.11+11.2.3.5\) 

\(L=36.33-35.33+33.10\) 

\(L=33.\left(36-35+10\right)\) 

\(L=33.11\) 

\(L=363\) 

\(N=160-\left(2^3.5^2-6.25\right)\) 

\(N=160-\left[25.\left(8-6\right)\right]\) 

\(N=160-\left[25.2\right]\) 

\(N=160-50\) 

\(N=110\) 

\(O=\left(44.52.60\right):\left(11.13.15\right)=137280:2145=64\) 

\(P=\left(2^{17}+15^4\right).\left(3^9-2^{17}\right).\left(2^4-4^2\right)=\left(2^{17}+15^4\right).\left(3^9-2^{17}\right).0=0\)  

Answer 2

[꧁_͏ͥ͏_͏ͣ͏_͏ͫ͏ ¡亗ᵛᶰシ๖ۣۜT๖ۣۜR๖ۣۜÂ๖ۣ...]

\(Q=100+98+96+...+4+2-97-95-...-3-1\) 

\(Q=100+\left(98-97\right)+\left(96-95\right)+...+\left(4-3\right)+\left(2-1\right)\) 

\(Q=100+1+1+...+1+1\) 

Vì có 98:2=49 số 1

\(\Rightarrow Q=100+49\) 

\(Q=149\)