160-(23.52-6.25) =?
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\(160-(2^3\cdot5^2-6\cdot25)\)
\(=160-(8\cdot25-6\cdot25)\)
\(=160-\left[(8-6)\cdot25\right]\)
\(=160-2\cdot25=160-50=110\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(160-\left(2^3\cdot5^2-6\cdot25\right)\)
= \(160-\left(8\cdot25-6\cdot25\right)\)
= \(160-25\left(8-6\right)\)
= \(160-25\cdot2=160-50=110\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 160-(8.25-6.25)
= 160-[25.(8-6)]
=160-(25.2)
=160-50
=110
b, 28.(76+24)
=28.100
=2800
a. 160 - ( 23 . 52 - 6 .25 )
= 160 - ( 8 . 25 - 6 .25 )
= 160 - [ 25 . ( 8 - 6 ) ]
= 160 - [ 25 . 2 ]
= 160 - 50 = 110
b. 28 . 76 + 24 . 28
= 28 . ( 76 + 24 )
= 28 . 100 = 2800
c. 4 . 52 - 32 . 24
= 4 . 25 - 32 . 16
= 4 . 25 - 32 . 4 . 4
= 4 . ( 25 - 32 . 4 )
= 4 . ( 25 - 128 )
= 4 . ( - 103 ) = - 412
d. 587 : [ 928 - ( 247 - 82 ) . 5 ]
= 587 : [ 928 - 165 . 5 ]
= 587 : [ 928 - 825 ]
= 587 : 103 = 5.69902913
![](https://rs.olm.vn/images/avt/0.png?1311)
7: =6-7+4-3=0
8: =8x5-9x4+4x6=40-36+24=28
3: =231+26-209-26=22
![](https://rs.olm.vn/images/avt/0.png?1311)
Cau a la ban hay tinh trong dau ngoac don truoc sau do lam nhoac vuong va lam dau ngoac nhon va tinh cac phep tinh con lai
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3: =231+26-209-26=22
4: =19(25+30+45)=19x100=1900
5: =-50+19+143+79-25-48
=-75+95+98
=98+20=118
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 160 - ( 23 . 52 - 6 . 25 ) = 160-( 8 . 25 - 6 . 25 ) = 160 - ( 25 . ( 8-6)) = 160-(25 . 2) = 160- 50 = 110
b) 4 . 52 - 32 : 24 = 4 . 25 - 4 . 8 : 16 = 4 . ( 25 - 8 : 16 ) = 4 . 24,5 = 98
![](https://rs.olm.vn/images/avt/0.png?1311)
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
-886 nha
\(160-\left(23,52-6,25\right)=160-17,27.\)
\(=142,83\)
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