134×23+134×17-40×34
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Ta có :
( -23 + 123 ) + ( -134 + 34 ) + 17
= 100 + (-100) + 17
= 0 + 17
= 17
a) \(48.19+48.15+134.52\)
\(=48\left(19+15\right)+6968\)
\(=48.34+6968\)
\(=1632+6968\)
\(=8600.\)
b) \(27.121-87.27+73.34\)
\(=27\left(121-87\right)+73.34\)
\(=27.34+73.34\)
\(=34\left(27+73\right)\)
\(=34.100\)
\(=3400.\)
c) \(125.98-125.46-52-25\)
\(=125\left(98-46\right)-52-25\)
\(=125.52-52-25\)
\(=52\left(125-1\right)-25\)
\(=52.124-25\)
\(=6448-25\)
\(=6423.\)
d) \(136.23+136.17-40.36\)
\(=136\left(23+17\right)-40.36\)
\(=136.40-40.36\)
\(=40\left(136-36\right)\)
\(=40.100\)
\(=4000.\)
e) \(66.25+5.66+66.14+33.94\)
\(=33\left(2.50+5.2+14.2+94\right)\)
\(=33\left(50+10+28+94\right)\)
\(=33.182\)
\(=6006.\)
134 - 34 :(x+2)=132
34:(x+2)=134-132
34:(x+2)=2
x+2 = 34:2
x+2 = 17
x = 17-2
x = 15
\(34.\left(-56\right)-134.56\)
\(=-56\left(34+134\right)\)
\(=-56.168=-9408\)
134 - 5. ( x + 4 ) = 34
5 . ( x + 4 ) = 134 - 34
5 . ( x + 4 ) = 100
( x + 4 ) = 100: 5
( x + 4 ) = 20
x = 20 - 4
x = 16
134 - 5(x+4) = 34
=> 134 - 5x - 20 = 34
=> 114 - 5x = 34
=> 5x = 114 - 34
=> 5x = 80
=> x= 16
134×23+134×17-40×34
134×(23+17)-40×34
134×40-40×34
40×(134-34)
40×100
4000
134x23+134x17-40x34=134x(23+17)-40x34
=134x40-40x34
=40x(134-34)
=4000