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36:32+23.22
=1.125+506
=507.125
(39.42-37.42):42
=42.(39-37) :42
=42 .2 :42
=84 : 42
=2
tick giúp tớ
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 36:32+23.22=9/8+506=(9+506.8)/8=(9+4048)/8=4057/8
b) 3.52-16:22=156-8/11=(156.11-8)/11=(1716-8)/11=1708/11
c) 80-[130-(12-4)2]=80-[130-8.2]=80-[130-16]=80-114=-34
![](https://rs.olm.vn/images/avt/0.png?1311)
a: 3*5^2-16:2^2
=3*25-16:4
=75-4=71
b: =2^3(17-14)
=8*3
=24
c: =15(141+59)
=15*200
=3000
d: =17(85+15)-200
=1700-200
=1500
f: =3+2^5
=3+32
=35
g: =42(39-37):42
=39-37
=2
![](https://rs.olm.vn/images/avt/0.png?1311)
b: =-45-27+8=-72+8=-64
c: =12:6=2
d: =-24:8=-3
e: =-36:9=-4
f: =14:7=2
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 22.85 + 15.22 - 20200
= 4.85 + 15.4 – 1
= 4.(85 + 15) – 1
= 4.100 – 1
= 400 – 1
= 399
b) 50 + [65 - (9 - 4)2]
= 50 +
= 50 + [65 – 25]
= 50 + 40
= 90
c) (39 - 19) : (-2) + (34 - 22).5
= 20 : (-2) + 12.5
= -10 + 60
= 50
d) 123.456 + 456.321 – 256.444
= 456.(123 + 321) – 256.444
= 456.444 – 256.444
= 444.(456 – 256)
= 444
![](https://rs.olm.vn/images/avt/0.png?1311)
C = 35 + 38 + 41 + ... + 92 + 95
C = \(\dfrac{\left(95+35\right).\left[\left(95-35\right):3+1\right]}{2}\)
C = \(\dfrac{130.21}{2}\)
C = 2730:2
C = 1365
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![](https://rs.olm.vn/images/avt/0.png?1311)
a) \(\dfrac{3}{10}\)
b) \(\dfrac{9}{28}\)
c) \(\dfrac{88}{195}\)
a)36:32+23.22-33.3
= 34+25-34
=25
=32
b)38:34-95:93
= 34-92
= 34-34
= 0
c)23.15+23.35
= 23(15+35)
= 8.50
= 400
a: \(3^6:3^2+2^3\cdot2^2-3^3\cdot3\)
\(=3^4+32-3^4\)
=32
b: \(3^8:3^4-9^5:9^3\)
\(=3^4-9^2\)
=0
c: Ta có: \(2^3\cdot15+2^3\cdot35\)
\(=8\cdot50\)
=400