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A=17x32+64x83+36x83+68x17
A=17x32+17x68+64x83+36x83
A=17x(32+68)+83x(64+36)
A=17x100+83x100
A=100x(83+17)
A=100x100
A=10000
A=17.32+64.83+36.83+68.17
=>17.(32+68)+83.(64+36)
=>17.100+83.100
=>100.(17+83)
=>100.100
=>10000
Học tốt~
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
10.(17 - x) - 64 = 36
<=> 10.(17 - x) = 100
<=> 17 - x = 10
<=> x = 7
@Van Dong Pham
\(10\left(17-x\right)-64=36\)
\(10\left(17-x\right)=36+64\)
\(10\left(17-x\right)=100\)
\(17-x=100:10\)
\(17-x=10\)
\(x=17-10\)
\(x=7\left(tm\right)\)
Vậy ...............
10(17 - x) - 64 = 36
<=> 10(17 - x) = 100
<=> 17 - x = 10
<=> x = 7
@Van Dong Pham
\(10\left(17-x\right)-64=36\)
\(10\left(17-x\right)=36+64\)
\(10\left(17-x\right)=100\)
\(17-x=100:10\)
\(17-x=10\)
\(x=17-10\)
\(x=7\left(tm\right)\)
Vậy ...............
\(10.\left(17-x\right)-64=36\)
\(\Leftrightarrow10.\left(17-x\right)=36+64\)
\(\Leftrightarrow10.\left(17-x\right)=100\)
\(\Leftrightarrow17-x=100:10\)
\(\Leftrightarrow17-x=10\)
\(\Leftrightarrow x=17-10\)
\(\Leftrightarrow x=7\)
chúc bạn học tốt , tick cho mk nhé
\(10.\left(17-x\right)-64=36\)
\(\Leftrightarrow10.\left(17-x\right)=36+64\)
\(\Leftrightarrow10.\left(17-x\right)=100\)
\(\Leftrightarrow17-x=100:10\)
\(\Leftrightarrow17-x=10\)
\(\Leftrightarrow x=17-10\)
\(\Leftrightarrow x=7\)
a,,83+17x=100
\(\Rightarrow\)17x=100-83
\(\Rightarrow17x=17\)
\(\Rightarrow\)x=1
Vậy x=1
b,100-64:(x-1)=36
\(\Rightarrow\)64:(x-1)=100-36
\(\Rightarrow\)64:(x-1)=64
\(\Rightarrow\)x-1=1
\(\Rightarrow\)x=2
Vậy x=2
13 + 21.5 - (198 : 11 - 8)
= 13 + 105 - 10
= 108
272 : 16 - 5 +4 (30 - 5 - 255 : 17)
= 17 - 5 + 4. ( 30 - 5 - 15 )
= 16 . 10
= 160
15.24 - 14.5 (145 : 5 - 27)
= 360 - 70 ( 29 - 27 )
= 290 . 2
= 580
18.3 - 18.2 + 3 (51 : 17)
= 54 - 36 + 3 . 3
= 54 - 36 + 9
= 27
(64 + 115 + 36) - 25.8
= 215 - 200
= 15
15.8 - (17 - 30 + 83) - 144 : 6
= 120 - 70 - 24
= 26
250 : 50 - (46 - 75 + 54) : 5
= 5 - 25 : 5
= 5 - 5
= 0
13 (17 - 95 + 83) : 5 - 18 : 9
= 13. 5 : 5 - 2
= 65 : 5 - 2
= 13 - 2
= 11
140 - 180(47 - 90 + 43) + 7
= 140 - 180 . 0 + 7
= 140 + 7
= 147
24 (15 + 30 + 85 - 120):10
= 24. 10 : 10
= 240 : 10
= 24
27 + 73 - 30 : (25 -10)
= 27 + 73 - 30 : 15
= 27 + 73 - 2
= 98
18 - 4 (27 - 90 + 73) : 10
= 18 - 4. 10 : 10
= 18 - 40 : 10
= 18 - 4
= 14
Bài 2: Tính
140 - [ 25 : (4 mũ 2 - 11) + 4 ]
= 140 - [25 : (16 - 11) + 4 ]
= 140 - [ 25 : 5 + 4 ]
= 140 - [ 5 + 4]
= 140 - 9
= 131
17 . 64 + 36 . 17 = ?
= 17 . ( 64 + 36 )
= 17 . 100
= 1700
Chúc bạn học tốt !