Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
a) \(53.\left(-15\right)+\left(-15\right).47=\left(-15\right).\left(53+47\right)=\left(-15\right).100=-1500\)
b) \(\left(-43\right).92-46.27+46.41=\left(-86\right).46-46.27+46.41\)
\(=46\left[\left(-86\right)-27+41\right]=46.\left(-72\right)=-3312\)
c) \(\left(-72\right)\left(15-49\right)+15\left(-56+72\right)=\left(-72\right).15-72.49+15.\left(-56\right)+15.72\)
\(=\left[\left(-72\right).15+15.72\right]-72.49-15.56=0-3528-840=4368\)
d) \(\left(-2^4\right).17.\left(-3\right)^0.\left(-5\right)^6\left(-1^{2n}\right)=16.17.1.12625.\left(-1^{2n}\right)\)
a,\(53.\left(-15\right)+\left(-15\right).47\)
\(=-15.\left(53+47\right)=-15.100=-1500\)
\(b,-43.92-46.27+46.41\)
\(=-43.92-\left[46.\left(27-41\right)\right]=-43.92-\left[46.\left(-14\right)\right]\)
\(=-3956+644=-3312\)
\(c,-72\left(15-49\right)+15\left(-56+72\right)\)
\(=-15.72+49.72+15.\left(-56\right)+15.72\)
\(=72.\left(-15+49+15\right)-15.56=3528-840=2688\)
a) 53.(-15)+(-15).47
=53.[(-15)+(-15)].47
=53.(-30).47
=-1590.47
=-74730
a,
53.(-15) + (-15).47
= (-15).(53 + 47)
= -15.100
= -1500
b,
-43.92 - 46.27 + 46.41
= -43.92 - 46.(27 - 41)
= -86.46 - 46.(-14)
= 46.(-86 -14)
= 46.(-100)
= -4600
c,
-72(15 - 49) + 15(-56 + 72)
= -72.15 + 72.49 - 56.15 + 72.15
= 56(63 - 15)
= 2688
d,
(-24).17.(-3)0.(-5)6.(-12n)
= (-24).17.(-56)
= 4250000
1/ Ta có :\(-43.92-46.27+46.41\)
\(=\left(-86\right).46-46.27+46.41\)
\(=46.\left(-86-27+41\right)\)
\(=46.\left(-72\right)\)
\(=-3312\)
a) \(53.\left(-15\right)+\left(-15\right).47=\left(-15\right).\left(53+47\right)\)
\(=\left(-15\right).100\)
\(=-1500\)
Ta có:\(-43.92-46.27+46.41=-43.92-46.\left(27-41\right)\)
\(=-43.92-46.\left(-14\right)\)
\(=-43.92+46.14\)
\(=-43.92+92.7\)
\(=92.\left(7-43\right)\)
\(=92.\left(4-40\right)\)
\(=92.4-92.40\)
\(=368-3680\)
\(=-3312\)
a) - 72 . ( 15 - 49 ) + 15 . ( - 56 + 72 ) = -72 . -34 +15 . 16
= 2448 + 240
= 2688
b) 1532 + ( -168 ) + ( - 1432 ) + ( - 14 ) + 123 = 1364 + ( -1432) + ( -14) +123
= -68 + ( -14 ) +123
= -82 + 123 = 41
c) 75 - 5 . ( 15 - 40 ) - ( - 60 ) = 75 - 5 . (-25 )-(-60)
= 75 - (-125) - ( -60 )
= 200 - ( -60 ) = 260
d) | 31 -17 | - | 15 - 52 | = | 14 | - | -37 |
= 14 - 37
= -23
a) -2021.371+2021-(-629)
=2021.(-371)+2021+629
=2021.[-371+1]+629
=2021.(-370)+629
=-747770+629
=-747141
b) 957.(-37)-137.(-957)
=957.(-37)+137.957
=957.[-37+137]
=957.100
=95700
d) (451-527)+(527-741-451)
=451-527+527-741-451
=(451-451)+(-527+527)-741
=0+0-741
=-741
e) (-632+129)-(-17-632+129)
=-632+129+17+632-129
=(-632+632)+(129-12)+17
=0+0+17
=17
-72(15-49) + 15 (-56 + 72)
= -72 . -34 + 15 . 16
= 2488 + 240
= 2728
-72(15-49)+15(-56+72) =-72.(-34)+15.16 =2448+240 = 2688 làm luôn :16.17.1.15625.1 =272.15625 =4250000