( - 23 ) - 54 - (- 56 ) = ???
23*56+56*23+56*54
(54+23*0)*(32+45+56)=?
56:54+23-12023
giúp mik với nọi người
\(5^6:5^4+2^3-1^{2023}=5^{6-4}+8-1=5^2+8-1=25+8-1=33-1=32\)
39.13+87.39
b) 23.+56:54-20190
c)160:{120-[24+(9-5)2 ]}
c: \(=160:\left\{120-\left[24+4^2\right]\right\}\)
\(=160:80\)
=2
45 + 23 - 54 x 56 : 34 =?
23 x 2 =?
56 - 6 =?
12 + 34 =?
54 : 2 =?
23 x 2 = 46
56 - 6 = 50
12 + 34 = 45
54 : 2 = 27
ủng hộ mk nha ^_-
23 x 2 = 46
56 - 6 = 50
12 + 34 = 46
54 : 2 = 27
23 x 2 =26
56 - 6 =50
12 + 34 =46
54 : 2 =27
Tìm x, biết:
a ) 4 3 . x = 2 5 b ) x . 3 7 = 21 5 ; c ) 4 9 + 5 6 : x = 1 6 d ) 5 4 : x + 2 = 2 3
a ) 3 10 . b ) 49 5 . c ) − 3. d ) − 15 6
1+2+3+4+5+6+7+7+8+9+10+11+12+13+14+45+15+16+17+18+19+20+21-56+56+48+52+78+84+54+2545+455+1454+1256-23+56+586=
1+2+3+4+....-56+56+48.......-23+56+586=6928
a) 80 - (4.52 - 3.23 )
b) 5 6 : 54 + 23 .22 - 1 2019
c) 125 - 2.[56 - 48 : (15 - 7)]
d) 23.75 + 25.10 + 25.13 + 180
e) 2448: [119 -(23 -6)]
f) [36.4 - 4.(82 - 7.11)2 : 4 - 20160
a) 80- (4.52 - 3.23)
= 80- ( 208 -69 )
=80+139 quy tắc đổi dấu trừ tước dấu ngoặc
= 219
e: Ta có: \(2448:\left[119-\left(23-6\right)\right]\)
\(=2448:\left(119-23+6\right)\)
\(=2448:102=24\)