234135-234*36+234
Bỏ dấu ngoặc rồi tính
a) (24 - 234) + (234 - 24 - 77) b) (13 - 135 + 49) - (13+ 49)
c) 159 - 524 - (59 - 424) d) (36 + 79) + (145 - 79 - 36)
e) 334 - (117 + 234) + (42 + 117) f) 271 - [(-43) + 271 - (-17)]
a: \(\left(24-234\right)+\left(234-24-77\right)\)
\(=24-234+234-24-77\)
\(=\left(24-24\right)+\left(234-234\right)-77\)
=0+0-77
=-77
b: \(\left(13-135+49\right)-\left(13+49\right)\)
\(=13-135+49-13-49\)
\(=\left(13-13\right)+\left(49-49\right)-135\)
=0+0-135
=-135
c: \(159-524-\left(59-424\right)\)
\(=159-524-59+424\)
\(=\left(159-59\right)-\left(524-424\right)\)
=100-100
=0
d: \(\left(36+79\right)+\left(145-79-36\right)\)
\(=36+79+145-79-36\)
\(=\left(36-36\right)+\left(79-79\right)+145\)
=0+0+145
=145
e: \(334-\left(117+234\right)+\left(42+117\right)\)
\(=334-117-234+42+117\)
\(=\left(334-234\right)+\left(117-117\right)+42\)
=100+0+42
=142
f: \(271-\left[\left(-43\right)+271-\left(-17\right)\right]\)
\(=271+43-271+\left(-17\right)\)
\(=\left(271-271\right)+\left(43-17\right)\)
=0+26
=26
Cho biểu thức: 234 x 43 + 234 x 57. Cách tính đúng là: *
A. 234 x 43 + 234 x 57 = 234 x 43 + 234 = 10 296
B. 234 x 43 + 234 x 57 = 234 x 43 + 57 = 10 119
C. 234 x 43 + 234 x 57 = 234 x (57 – 43) = 3 276
D. 234 x 43 + 234 x 57 = 234 x (43 + 57) = 23 400
234 : 56
36 :0,125
234:56=4,1785714386
36:0,125=288
tk cho mk nhaaaa thank you
tính nhanh :
a) 946 . 3 + 496 . 4 - 496 . 6
b) 2019 . (2020 + 1) - 2019 . 2020
c) 436 + 324 . (234 - 1) - 234 . 324 + 324
d) 472 . (36 - 1) + 35 . 8
Trả lời
a)964.3+496.4-496.6
=964.3+[496.(4-6)]
=964.3+(-992)
=2892+(-992)
=1900
b)2019.(2020+1)-2019.2020
=2019.2020.2019-2019.2020
=2019
c)436+324.(234-1)-234.324+324
=436+324.234-324-234.324+324
=436
d)472.(36-1)+35.8
=472.35+35.8
=35.(472+8)
=35.480
=16 800
Ko chắc nha, sai thì cho mk xl vì làm phiền bạn !
b)2019.(2020+1)-2019.2020
=2019.(2020+1-2020)
=2019.1
=2019
9-4+1+234-34+234-34+234-34+234-34+234-34-6
9-4+1+234-34+234-34+234-34+234-34+234-34-6
=1000
tick nha!
234+234+234=?
c1)234+234+234=468+234=702
c2)234+234+234=234x3=702
kick mik nha bạn
234 nhân 34 - 234+ 67 nhân 234
234 x 34 - 234 + 67 x 234
= 234 x 34 - 234 x 1 + 67 x 234
= 234 x ( 34 - 1 + 67)
= 234 x ( 33 + 67)
= 234 x 100
= 23400
234 x 34 - 234 + 67 x 234
= 234 x 34 - 234 x 1 + 67 x 234
= 234 x ( 34 - 1 + 67)
= 234 x ( 33 + 67)
= 234 x 100
= 23400
\(234\times34-234+67\times234\)
\(=234\times34-234\times1+67\times234\)
\(=234\times\left(34+67-1\right)\)
\(=234\times\left(101-1\right)\)
\(=234\times100\)
\(=23400\)
234 x 1125 – 234 – 124 x 234
\(234\times1125-234-124\times234\\=234\times(1125-1-124)\\=234\times(1124-124)\\=234\times1000\\=234000\)
Bỏ dấu ngoặc rồi tính
a ) 159 − 524 − 59 − 424 ; b ) 36 + 79 + 145 − 79 − 36 ; c ) 334 − 117 + 234 + 42 + 117 ; d ) 271 − − 43 + 271 − − 17 .
a ) 159 − 524 − 59 − 424 ; = 159 − 524 − 59 + 424 = 159 − 59 − 524 − 424 = 100 − 100 = 0 b ) 36 + 79 + 145 − 79 − 36 ; = 36 + 79 + 145 − 79 − 36 = 36 − 36 + 79 − 79 + 145 = 145 c ) 334 − 117 + 234 + 42 + 117 ; = 334 − 117 − 234 + 42 + 117 = 334 − 234 − 117 − 117 + 42 = 100 + 42 = 142 d ) 271 − − 43 + 271 − − 17 . = 271 − − 43 + 271 + 17 = 271 + 43 − 271 − 17 = 271 − 271 + 43 − 17 = 26