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\(703-140:\left(42+28\right)-17^{15}:17^{13}\)
\(=730-140:70-17^2\)
\(=730-2-289\)
\(=439\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a: \(=703-140:\left(38+32\right)-17^{15}:17^{13}\)
\(=703-140:70-17^2\)
\(=701-289=412\)
b: \(=1024:32+140:\left(38+32\right)+23^2-7^2\)
\(=32+140:70+529-49\)
\(=32+4+480=516\)
c: \(=17^4\cdot17:17^3-14\cdot4:8\)
\(=17^2-7=289-7=282\)
![](https://rs.olm.vn/images/avt/0.png?1311)
14 x 32 + 7x 140 - 28
= 14 x 32 + 7 x 14 x 10 - 14 x 2
= 14 x 32 + 14 x 70 - 14 x 2
= 14 x ( 32 + 70 - 2 )
= 14 x 100
= 1400
17 x 35 + 67 x 17 - 34
= 17 x 35 + 67 x 17 - 2 x 17
= 17 x ( 35 + 67 - 2 )
= 17 x 100
= 1700
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a ) 5 x 216 x 25 x 4 = 1080 x 100 = 108000
b ) 37 x 16 x 25 x 4 = 592 x 100 = 59200
c ) 36 x ( 28 + 82 ) + 64 x ( 69 + 41 ) = 36 x 110 + 64 x 110 = ( 36 + 64 ) x 110 = 100 x 110 = 11000
d ) 42 x ( 53 + 36 + 11 ) = 42 x 100 = 4200
e) 37 x 45 + 56 x 37 - 37 x 1 = 37 x ( 45 + 56 - 1 ) = 37 x 100 = 3700
h) 17 x 1 + 17 x 81 + 18 x 17 = 17 x ( 1 + 81 + 18 ) = 17 x 100 = 1700
Mik nhanh nhất đấy , nhớ click cho mik nha !!!!!!!!!!!!!!!!!!!
a) 5 x 25 x 216 x 4
= ( 5 x 216 ) x ( 25 x 4 )
= 1080 x 100
= 108000
b) 4 x 37 x 25 x 16
= ( 4 x 25 ) x ( 37 x 16 )
= 100 x 592
= 59200
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a,-215-358+215+\left(-42\right)\\ =\left(-215+215\right)+\left(-358-42\right)\\ =0-400\\ =-400\\ b,13\cdot\left(23+22\right)-3\cdot\left(17+28\right)\\ =13\cdot45-3\cdot45\\ =45\cdot\left(13-3\right)\\ =45\cdot10\\ =450\)
\(703-140:\left(42+28\right)-17^6.17^9:17^{13}\)
\(=703-140:70-17^2\)
\(=701-17^2\)
\(=412\)
c.ơn