giúp mk với
-75+(-49)+|75|+49-12
Thực hiện phép tính:
-75+(-49)+|-75|+49-12
____Ngốc cuồng BTS____:
-75+(-49)+|-75|+49-12
=-75+(-49)+75+49-12
=[-75+(-49)]+(75+49)-12
=-124+124-12
=0-12
=-12
\(-75+\left(-49\right)+|-75|+49-12=-75-49+75+49-12\)
\(=\left[\left(75-75\right)+\left(49-49\right)\right]-12=0+0-12=-12\)
tôi cuông bts đây
=-75+(-49)+75+49-12
=-124+75+49-12
=-49+49-12
=0-12
=-12
Tính hợp lý:
45-58+(-45)+(+58)-3
(-57)-(-12)+3-(-57)
-(-24)-(-30)+(-24)-30+8
-(-12)+(+19)-(+12)+8-19
47-(-53)+(-47)-(+53)
-(+28)+32-(-28)+(-34)
15-(+72)+(-15)+(+72)
20-(+46)+(-25)-(-46)
28-(-32)+(-28)-32+5
-75+(-49)+(+75)+49-12
Giúp e vs ạ
45-58+(-45)+(+58)-3=45-58-45+58-3=(45-45)+(58-58)-3=-3
(-57)-(-12)+3-(-57)=-57+12+3+57=(-57+57)+12+3=15
-(-24)-(-30)+(-24)-30+8=24+30-24-30+8=(24-24)+(30-30)+8=8
-(-12)+(+19)-(+12)+8-19=12+19-12+8-19=(12-12)+(19-19)+8=8
47-(-53)+(-47)-(+53)=47+53-47-53=(47-47)+(53-53)=0
-(+28)+32-(-28)+(-34)=-28+32+28-34=(-28+28)-(34-32)=-2
15-(+72)+(-15)+(+72)=15-72-15+72=(15-15)+(72-72)=0
20-(+46)+(-25)-(-46)=20-46-25+46=(20-25)+(46-46)=-5
28-(-32)+(-28)-32+5=28+32-28-32+5=(28-28)+(32-32)+5=5
-75+(-49)+(+75)+49-12=-75-49+75+49-12=(-75+75)+(49-49)-12=-12
\(...=45-58-45+58-3=-3\)
\(...=-57+12+3+57=15\)
\(...=24+30-24-30+8=8\)
\(...=12+19-12+8-19=8\)
\(...=47+53-47-53=0\)
\(...=-28+32+28-34=-2\)
\(...=15-72-15+72=0\)
\(...=20-46-25+46=-5\)
\(=...28+32-28-32+5=5\)
\(...=-75-49+75+49-12=-12\)
tính hợp lý:
25x(75-49)+75x|25-49|
mk đang cần gấp
25x26+75x|-24|
=25x26+75x24
=25x24+25x2+75x24
=(25+75)x24 + 25x2
=100x24+100
=2400+100
=2500
25.(75-49)+75.(49-25)
25. (75 + 49) – 75. (25 – 49) = ?
25.(75+49)-75.(25-49)
=25.124-75.(-24)
=3100-(-1800)
=3100+1800
=4900
HỌC TỐT !!!!
=25.75+25.49-75.25+75.49
=[(25.75)-(75.25)-(25.49)+(75.49)
=0-1225+3675
=2450
25(75+49)-75(25-49)
= 25.75+25.49-75.25-75.49
=(25.75-75.25)
25.(75-49)+75.(25-49) tính nhanh nhé
25 . (75 - 49) + 75 . (25 - 49)
= 25 . 75 - 25 . 49 + 75 . 25 - 75 . 49
= 1875 - 1225 + 1875 - 3675
= 650 + 1875 - 3675
= 2525 - 3675
= -1150
=25.75-25.49+75.25-75.49
=1875-1225+1875-3675
=650+1875-3675
=2525-3675
=-1150
Tính nhanh:
13) 25 . (75-49) + 75 . /25 - 49/
\(=25\cdot75-25\cdot49+75\cdot\left(49-25\right)\)
\(=25\cdot75-25\cdot49+75\cdot49-75\cdot25\)
=49x50=2450
Tính nhanh
25.(75-49)+75.|25-49|
\(25.\left(75-49\right)+75.\left|25-49\right|\)
\(=25.75-25.49+75.24\)
\(=25.75-25.49+25.3.24\)
\(=25.75-25.49+25.72\)
\(=25.\left(75-49+72\right)\)
\(=25.98\)
\(=2450\)
25 . (75 - 49) + 75 . |25 - 49|
= 25 . 26 + 75 . 24
= 25 . (26 + 24)
= 25 . 50
= 1250
(-75)+(-7)^2+|-75|+49-(-4)^3
Giải nhanh giúp mình mình cảm ơn trước ạ 🙂
(-75)+(-7)^2+|-75|+49-(-4)^3
= (-75)+49+75+49+64
=2.49+64
=98+64
=162
(-75)+(-7)^2+|-75|+49-(-4)^3
=(-75)+49+75+49+4^3
= -75+49+75+49+64
= (-75+75)+49+49+64
= 0+49+49+64
= 49+49+64
= 2x49+64
= 98+64
= 162