29-[16+3.(51-49)]
10^2-60:(5^6:5^4-3.5)
(-123)+/-13/+(-7)
g. 29 – [16 + 3.(51 – 49)] h. 47 – (45.24 – 5².12) : 14 i. 10² – 60 : (56 : 54 – 3.5)
Nếu tính bình thường thì bn lm như thế này cg đc tùy bn
g ) 29 - \([16+3.\left(51-49\right)]\)
= 29 - \([\begin{matrix}16&+&3&.&2\end{matrix}]\)
= 29 - \([16\begin{matrix}+&6\end{matrix}]\)
= 29 -22
= 7
h ) 47 - ( 45 . 24 - 52 . 12 ) : 14
= 47 - ( 45 . 16 - 25 . 12 ) : 14
= 47 - ( 720 - 300 ) : 14
= 47 - 420 : 14
= 47 - 30
= 17
i ) 102 - 60 : ( 56 : 54 - 3 . 5 )
= 100 - 60 : ( 52 - 3 . 5 )
= 100 - 60 : ( 25 - 15 )
= 100 - 60 : 10
= 100 - 6
= 94
thực hiện phép tính
a,3.5^2+15.2^2-26:2
b,5^3.2-100:4+2^3.5
c,6^2:9+50.2-3^3.3
d,3^2.5+2^3.10-81:3
e,5^13:5^10-25.2^2
f,20:2^2+5^9:5^8
g,100:5^2+7.3^2
h,84:4+3^9:3^7+5^0
i,29-[16+3.(51-49)
mong các bn j
a) 3. 5 ^ 2 + 15. 2 ^2 - 26 : 2
= 15 ^ 2 + 15. 4 - 13
= 225 + 60 - 13
= 272
b) 5 ^ 3. 2 - 100 : 4 + 2 ^ 3. 5
= 125. 2 - 25 + 40
= 250 - 25 + 40
= 265
c) 6 ^ 2 : 9 + 50. 2 - 3 ^ 3. 3
= 36 : 9 + 100 - 81
= 4 + 100 - 81
= 23
d) 3 ^ 2. 5 + 2 ^ 3 . 10 - 81 : 3
= 45 + 8 . 10 - 27
= 53 + 80 - 27
= 160
e) 5 ^ 13 : 5 ^ 10 - 25. 2 ^ 2
= 1220703125 : 9765625 - 25. 4
= 125 - 100
= 25
f) 20 : 2 ^ 2 + 5 ^ 9 : 5 ^ 8
= 20 : 4 + 1953125 : 390625
= 5 + 5
= 10
g) 100 : 5 ^ 2 + 7. 3 ^ 2
= 100 : 25 + 7 . 9
= 4 + 63
= 67
h) 84 :4 + 3 ^ 9 : 3 ^ 7 + 5 ^ 0
= 21 + 19683 : 2187 + 1
= 21 + 9 + 1
= 31
i) 29 - [ 16 + 3. ( 51 - 49) ]
= 29 - [ 16 + 3. 2 ]
= 29 - 22
= 7
Mình làm xong rồi nhé!
29*(-49)+(-29)*51
20:22-59:58 29-[16+3.(51-49)]
(519:517-4):7 47.(45.24-52.12):14
-84:4+39:37+50 102-60:(56:54-3.5)
295-(31-22.5)2 2345-1000:{19-2(21-18)2
1125:1123-35:(110+23)-60 205-[1500-(42-2.3)3]
sau 58 ,7,50 ,2,-60 là phép tính khác .
mấy b giúp mk nha ?
Thực hiện các phép tính
300:60-30:(10+5)-30
2011+5.[300-10.(17-7)]
29-[16+3.(51-49)]
2010-2000:[486-2.(49-6)]
300 : 60 - 30 : (10 + 5) - 30
= 50 - 30 : 15 - 30
= 50 - 2 - 30
= 48 - 30
= 18.
2011 + 5 . [300 - 10 . (17 - 7)]
= 2011 + 5 . [300 - 10 . 10]
= 2011 + 5 . [300 - 100]
= 2011 + 5 . 200
= 2011 + 1000
= 3011.
29 - [16 + 3 . (51 - 49)]
= 29 - [16 + 3 . 2]
= 29 - [16 + 6]
= 29 - 22
= 7.
2010 - 2000 : [486 - 2 . (49 - 6)]
= 2010 - 2000 : [486 - 2 . 43]
= 2010 - 2000 : [486 - 86]
= 2010 - 2000 : 400
= 2010 - 500
= 1510.
cái câu 300 :60 - 30 ; ( 10 + 5 ) - 30 Nguyễn Thanh vân sai rồi tề, đáng lẽ 300 : 60 = 5 chớ
a. 58.75 + 58.50 – 58.25 b. 20 : 2² – 59 : 58. c. (519 : 517 – 4) : 7
d. –84 : 4 + 39 : 37 + 50. e. 295 – (31 – 2².5)² f. 1125 : 1123 – 35 : (110 + 23) – 60
g. 29 – [16 + 3.(51 – 49)] h. 47 – (45.24 – 5².12) : 14 i. 10² – 60 : (56 : 54 – 3.5)
j. 2345 – 1000 : [19 – 2(21 – 18)²] k. 205 – [1200 – (4² – 2.3)³] : 40
ℓ. 500 – {5[409 – (2³.3 – 21)²] + 10³} : 15 m. 67 – [8 + 7.3² – 24 : 6 + (9 – 7)³] : 15
n. (–23) + 13 + (–17) + 57 o. (–123) + |–13| + (–7) p. |–10| + |45| + (–|–455|) + |–750|
q. –|–33| + (–15) + 20 – |45 – 40| – 57. h. 9.|40 – 37| – |2.13 – 52|
GIÚP TỚ VỚI !!!
( 4/5/57 - 3/4/51 + 8/13/29 ) - ( 3/5/57 - 6/16/29)
6/7 + 5/8 : 5 - 3/16 . ( -2 )²
1/13/15 . 0, 75 - ( 104/195 + 25% ) . 24/47 - 3/12/13 : 3
a. ( 19 5/8 : 7/12 - 13 1/4 : 7/12) . 4/5
b.( - 2/5 + 3/7) - (4/9 + 12/20 - 13/35) + 7/35
c. ( 4 5/57 - 3/ 4/51 + 8 13/29) - ( 3 5/57 - 6 16/29)
\(\left(19\frac{5}{8}:\frac{7}{12}-13\frac{1}{4}:\frac{7}{12}\right).\frac{4}{5}\)
\(=\left(\frac{157}{8}:\frac{7}{12}-\frac{53}{4}:\frac{7}{12}\right).\frac{4}{5}\)
\(=\left[\left(\frac{157}{8}-\frac{53}{4}\right):\frac{7}{12}\right].\frac{4}{5}\)
\(=\left[\frac{51}{8}:\frac{7}{12}\right].\frac{4}{5}\)
\(=\frac{153}{14}.\frac{4}{5}\)
\(=\frac{306}{35}\)
\(\left(\frac{-2}{5}+\frac{3}{7}\right)-\left(\frac{4}{9}+\frac{12}{20}-\frac{13}{35}\right)+\frac{7}{35}\)
\(=\frac{1}{35}-\frac{212}{315}+\frac{7}{35}\)
\(=\frac{1}{35}+\frac{-212}{315}+\frac{7}{35}\)
\(=\frac{9}{315}+\frac{-212}{315}+\frac{63}{315}\)
\(=\frac{-140}{315}=\frac{-4}{9}\)
\(\left(4\frac{5}{57}-3\frac{4}{51}+8\frac{13}{29}\right)-\left(3\frac{5}{57}-6\frac{16}{29}\right)\)
\(=\left(\frac{233}{57}-\frac{157}{51}+\frac{245}{29}\right)-\left(\frac{176}{57}-\frac{190}{29}\right)\)
\(=\frac{1941}{323}-\frac{-5726}{1653}\)
\(=\frac{14011}{1479}\)
47-[(45.2^4-5^2.12):14]
50-[(20-2^3):2+34]
10^2-[60:(5^6:5^4-3.5)]
50-[(50-2^3.5):2+3]
10-[(8^2-48).5+(2^3.10+8)]:28
8697-[3^7,3^5+2(13-3)]
2011+5[300-(17-7^2)]
695-[200+(11-1^2)]
129-5[29-(6-1^2)]
2010-2000:486-2(7^2-6)]
dài thế này làm đến tết chắc vẫn chưa xong
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