b) 2^3.(-7).125
c) (437-25) - (175+437)
d) (-17).39+17.161
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
a)\(\text{ -19+84+19+16 }\)
\(=\left(-19+19\right)+\left(84+16\right)\)
\(=0+100=100\)
\(\left(437-25\right)-\left(175+437\right)\)
\(=437-437-\left(25+175\right)=-200\)
\(c\))\(2^3.\left(-7\right).125\)
\(=\left(8.125\right).\left(-7\right)\)
\(=1000.\left(-7\right)=-7000\)
a). -19+84+19+16= 19+ (-84) +19+16= 19+ ( -84 + 16) = 19 + (-68 )= - 49
c). 23. (-7) . 125 = 8. (-7) . 125 = (125.8). (-7) = 1000. (-7 ) = -7000
d). (-17) . 39 + 17.( -161) = 17. (-39 ) + 17. (-161) = 17. \([\left(-39\right)+\left(-161\right)]\) = 17. (-200)= -3400
nhớ k cho mik nha <3
a) `537 + (56 + 216) - (216 + 437)=537+56+216-216-437=(537-437)+(216-216)+56=100+0+56=156`
b) `271 - (- 43) + 271 + (- 17)=271+43+271-17=568`
c) `26 . (- 125) - 125 (- 36)= (-26) .125- 125 (- 36)=125[(-26)-(-36)]=125.10=1250`
a)(629 +437 )-437 -19
=1066-437-19
=629-19
=610
b)47.86 -47.76 + 2.13.5 -30 +4 .19 .25
=47.(86-76)+(2.5).13-30+(4.25).19
=47.10+10.13-30+100.19
=470+130-30+1900
=600-30+1900
=570+1900
=2470
c) 2928 + (-53) -(-149) + (-247) -2598
=2875+149-247-2598
=3024-247-2598
=2777-2598
=179
a) \(437\times136-437\times125\)
\(=437\times\left(136-125\right)\)
\(=437\times11\)
\(=4807\)
b) \(2009\times71+29\times2009\)
\(=2009\times\left(71+29\right)\)
\(=2009\times100\)
\(=200900\)
a) 437 x 136 - 437 x 125
= 437 x (136 - 125 )
= 437 x 11
= 4807
b) 2009 x 71 + 29 x 2009
= 2009 x ( 71 + 29 )
= 2009 x 100
= 200900
a) \(175-\left(-25\right)+62-\left(1200+62\right)\)
\(=\left(175+25\right)+\left(62-62\right)-1200\)
\(=200-1200\)
\(=-1000\)
b) \(\left(-25\right)\cdot8\cdot\left(-4\right)\cdot\left(-125\right)\cdot3\)
\(=3\left[\left(-25\right)\cdot\left(-4\right)\right]\left[\left(-125\right)\cdot8\right]\)
\(=3\cdot100\cdot\left(-1000\right)\)
\(=-300000\)
c) \(27\cdot\left(-17\right)+17\cdot\left(-73\right)\)
\(=27\cdot\left(-17\right)+73\cdot\left(-17\right)\)
\(=\left(-17\right)\cdot\left(27+73\right)\)
\(=\left(-17\right)\cdot100\)
\(=-1700\)
d) \(512\cdot\left(2-128\right)-128\cdot\left(-512\right)\)
\(=512\cdot\left(2-128\right)+128\cdot512\)
\(=512\left(2-128+128\right)\)
\(=512\cdot2\)
\(=1024\)
b, 8.-7.125=1000.-7=-7000
c,(437-25)-(175+437)= 437-25-175-437=-200
d,-17.39+17.161=17.-39+17.161=17.(-39+161)=2074
b, 8.-7.125=-56.125=-7000
c,437-25-175+437=437-[-25-175]=437+200=737
d,-663+2737=2074