D= 54:(46+18)-46(54-18)+\(5^2\):\(\left(-2\right)^3\)
a)A = 9.(−2) a) 3 +12 : (34−28)
b) B = |−100|+(135−58)−(142−865)
c) C = 23.45+155.(−23) +230
d)D = 54.(46+18)−46(54−18)+5 2 .(−2\(^{\left(-2\right)^3}\)
tìm x:
46-x-18-40=46-18-54
làm như thế nào vậy
x-18-40 =-26
x-18-40=-72
x=72+18+40
x=-14
a) 2*244+3*3*355*6+18
b)46*34+57*62+46*66+57*38
c) 172*54+172*45+172
26+17+23+14 46+2+18+54
26 + 17 + 23 + 14
= ( 26 +14 ) + ( 17 +23 )
= 40 + 40
= 80
46 + 2 + 18 + 54
= ( 46 + 54 ) + ( 18 + 2 )
= 100 + 20
=120
1) 78 + 22 + 18 5) 325 + 172 - 72 + 65
2) 94 + 563 + (106 - 563) - (-70) 6) 214 + (-54) + (-14) + (-46)
3) 25.154 - 25 + 47.25 7) 245 - [(32 - 22).10 - 5]
4) [529 + 530.(16 - 11)] : 529 8) 25.23 - (9 - 14) + (29 - 34 + 20)
1) \(78+22+18=100+18=118.\)
2) \(94+563+\left(106-563\right)-\left(-70\right)=94+563+106-563+70\)
\(=\left(94+106\right)+\left(563-563\right)+70=270.\)
3) \(25.154-25+47.25=25.\left(154-1+47\right)=25.200=5000.\)
18+46-54+245-90=
Tính thuận tiện : 12+46+18+54 . Giúp em với
12+46+18+54=(12+18)+(46+54)
= 30 + 100
= 130 .
Chúc em học tốt
dễ mà 12 + 46 +18+54
= (46 +54)+(12+18)
= 100 + 30
= 130 nha bạn nhỏ
12+46+18+54=(12+18)+(46+54)
=30+100
=130
a,22+(-47)+(-153)+8
b,9+(-10)+11+(-12)+13+(-14)+15+(-16)
c,371+(-271)+(-531)
d,(-18)-54+(-46)-62
a) 22 + ( - 47 ) + ( - 153 ) + 8
= ( 22 + 8 ) - ( 47 + 153 )
= 30 - 200
= - 170
b) 9 + ( - 10 ) + 11 + ( - 12 ) + 13 + ( - 14 ) + 15 + ( - 16 )
= ( 9 - 10 ) + ( 11 - 12 ) + ( 13 - 14 ) + ( 15 - 16 )
= - 1 - 1 - 1 - 1
= - 4
c) 371 + ( - 271 ) + ( - 531 )
= ( 371 - 271 ) - 531
= 100 - 531
= - 431
d) ( - 18 ) - 54 + ( - 46 ) - 62
= ( - 18 - 62 ) - ( 54 + 46 )
= 80 - 100
= - 20