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a) 24,125 + 52,25 = 76,375
b) 17,27 + 17,25 + 17,28 = 51,8
c) 450,74 - 170.60 = 280,14
d) 89,14 + 67,12 + 194,18 = 350,44
a) 24 x 125 + 52 x 25
= ( 125 x 52 ) + ( 24 x 25 )
= 6500 + 600
= 7100
b) 17 x 27 + 17 x 25 + 17 x 28
= 17 x ( 27 + 25 + 28 )
= 17 x 80
= 1360
c) mình không biết xin lỗi
d) mình không biết xin lỗi nhé
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a. 24 x (-125 + 225)
= 24 x 100
=2400
b. -125 x ( 24 -36 )
= -125 x -12
= 1500
c. 512 x (2 -128+128)
= 512 x 2
= 1024
d. \([4.25].\left[\left(-2\right).\left(-5\right)\right].\left[125.\left(-8\right)\right]\)
= 100.10.(-1000)
= -1000000
a. 24 x (-125 + 225)
= 24 x 100
=2400
b. -125 x ( 24 -36 )
= -125 x -12
= 1500
c. 512 x (2 -128+128)
= 512 x 2
= 1024
d.
= 100.10.(-1000)
= -1000000
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\(-23-24-25+123+124+125\\ =\left(123-23\right)+\left(124-24\right)+\left(125-25\right)\\ =100+100+100\\ =300\)
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\(8.49.20.125.5=49.\left(20.5\right).\left(125.8\right)=49.100.1000=4900000\)
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\(72.125.3\)
\(=9.8.125.3\)
\(=\left(8.125\right).\left(9.3\right)\)
\(=1000.27\)
\(=27000\)
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(−125). 2. 45. (−8). 50
= [ (-125) . (-8) ] . [ 2. 50 ]. 45
= 1000 . 100 . 45
= 100000 . 45
= 4500000
![](https://rs.olm.vn/images/avt/0.png?1311)
( - 23) + 37 + ( - 79) + ( - 125) +221
= [ ( -23) + ( -79) + ( -125) +221] + 37
= [ ( -227) +221 ] + 37
= ( -6) + 37
= 27
= 17 x (75+25) - 125 = 17 x 100 - 125 = 1700 - 125 = 1575
k mk nha
17 x 75 + 17 x 25 - 125
=17 x ( 75 + 25 ) - 125
= 17 x 100 - 125
= 1700 - 125
=1575
tk nha