c) 98. 31 + 98.24 + 98. 27 + 2.82
d) 8.9.14 +6 . 17.12 + 19.4. 18 e) ( 22 + 44 + 66 + .. + 1000). (95 . 222 – 190 . 111)Cứu em ai nhanh hơn em tick1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 * 13 * 14 * 15 * 16 * 17 * 18 * 19 * 20 * 21 * 22 * 23 * 24 * 25 * 26 * 27 * 28 * 29 * 30 * 31 * 32 * 33 * 34 * 35 * 36 * 37 * 38 * 39 * 40 * 41 * 42 * 43 * 44 * 45 * 46 * 47 * 48 * 49 * 50 * 51 * 52 * 53 * 54 * 55 * 56 * 57 * 58 * 59 * 60 * 61 * 62 * 63 * 64 * 65 * 66 * 67 * 68 * 69 * 70 * 71 * 72 * 73 * 74 * 75 * 76 * 77 * 78 * 79 * 80 * 81 * 82 * 83 * 84 * 85 * 86 * 87 * 88 * 89 * 90 * 91 * 92 * 93 * 94 * 95 * 96 * 97 * 98 * 99 * 100 bằng bao nhiêu?
5871:{928-[(-82)+247)]x5} = ?
C=35+38+41+.....+92+95 = ?
5871 : [928 - (247 - 82 . 5)]
\(5871:\left[928-\left(247-82.5\right)\right]\\ =5871:\left[928-\left(247-410\right)\right]\\ =5871:\left[928-\left(-163\right)\right]\\ =5871:1091\\ =\dfrac{5871}{1091}\)
5871:[928−(247−82.5)]
=5871:[928−(247−410)]
=5871:[928−(−163)]
=5871:1091
=\(\dfrac{5871}{1091}\)
5871 : [ 928 - ( 247 - 82 . 5 )
\(=\dfrac{5871}{928-\left(247-410\right)}=\dfrac{5871}{928-247+410}\)
\(=\dfrac{5871}{1091}\)
\(5871:\left[928-\left(247-82\cdot5\right)\right]\)
\(=5871:\left[928-\left(247-410\right)\right]\)
\(=5871:\left(928+163\right)\)
\(=5871:1091\)
\(=\dfrac{5871}{1091}\)
=5871:(928+163)
=5871:1091
=5871/1091
1.
a)160 - ( 23.52-6.52)
b)4.52-327: 168
c) 5871 : [ 928 -( 247-82).5]
d)777: 7+12321:111
1.Tính hợp lí(nếu có thể)
a) 5871:[928-(247-82).5]
\(=5871:\left[928-165\cdot5\right]\\ =5871:\left[928-825\right]=5871:103=57\)
\(=5871:\left[928-165.5\right]=5871:\left[928-825\right]=5871:103=57\)
a,=5871:[928-165.5]
= 5871:[928-825]
= 5871:103
= 57
Tính ;
5871: [928-(247-82 . 5)
\(=5871:\left[928-\left(247-410\right)\right]\)
\(=5871:\left(928+163\right)\)
\(=5871:1091\)
\(=\frac{5871}{1091}\)
tíc mình nha
5781 : [ 928 - ( 247 - 82 . 5 )
5781 : [ 928 - 164,5 ]
5781 : 763,5 =7,571709234
5871 mũ 0 :[928-(247-82).5] + 2175 mũ 0
5871⁰ : [928 - (247 - 82).5] + 2175⁰
= 1 : (928 - 165.5) + 1
= 1 : (928 - 825) + 1
= 1 : (-103) + 1
= 102/103
- Tính :
a) 160 - ( 2^3 . 5^2 - 6 . 25 )
b) 4 . 5^2 - 32 . 2^4
c) 5871 : [ 928 - ( 247 - 82 ) . 5 ]
d) 777 : 7 + 1331 : 11^3
e) 17 . 85 + 15 . 17 - 120
f) 15 . 141 + 59 . 15
g) 20 - [ 30 - ( 5 - 1 ) ^2 ]
h) 37 - 11 . 3 . ( 24 - 23 ) + 22 . 10
160-(2^3.5^2-6.25)= 160-(8.25-150)=160-50=110
4.5^2-32.2^4= 4.25 - 32.16= 100-512=-412
5871:[928-(247-82).5]=5871:[(928-165).5=5871: ( 763.5)=5871:103=57
777:7+1331:11^3 = 111+1331:1331 = 111+1=112
17.85+15.17-120=17(85+15)-120=17.100-120=1700-120=1580
15.141+59.15=15(141+59)=15.200=3000
20-[30-(5-1)^2]=20-[30-4^2]=20-(30-16)=20-11=9
37-11.3.(24-23)+22.10= 37-33.1+220=37-253=-216
160-(2^3.5^2-6.25)= 160-(8.25-150)=160-50=110
4.5^2-32.2^4= 4.25 - 32.16= 100-512=-412
5871:[928-(247-82).5]=5871:[(928-165).5=5871: ( 763.5)=5871:103=57
777:7+1331:11^3 = 111+1331:1331 = 111+1=112
17.85+15.17-120=17(85+15)-120=17.100-120=1700-120=1580 15.141+59.15=15(141+59)=15.200=3000
20-[30-(5-1)^2]=20-[30-4^2]=20-(30-16)=20-11=9
37-11.3.(24-23)+22.10= 37-33.1+220=37-253=-216