a) 300  

b) 508

c) 52

132*99 + 132 = 132 * 100 = 13200

168*168-168*58/110 = 168*(168-58)/110 = 168*110/110 = 168

32*(132-147)+132*(32-247)

=32*(-15)+132*(-215)

=-480+(-28380)

=-28860

lúc đầu tớ làm cho cậu cách cô tớ dạy nhưng tớ k nhớ cách làm nên làm sai nên mới phải chọn cách này

132.(35-207)-35.31+31.207

=132.(35-207)-31.(35+207)

=132.(-172)-31.242

=-22704-7502

=30206

132.(35-207)-35.31+31.207

= 132.35 - 132.207 - 35.31 +31.207

= 35.(132-31) + 207.(31-132)

= 35.101 + 207.(-101)

= 35.201 + (-207).101

= 101.(35-207)

= 101.(-172)

= -17372

`a, 232 - ( 581 + 132 -331)`

`= 232 - 581 - 132 +331`

`= (232-132) +(-581 + 331)`

`= 100 -250`

`=-150`

`b, [12+ (-57)] - [-57-(-12)]`

`= 12+ (-57) - (-57+12)`

`= 12+ (-57) + 57 -12`

`= (12-12) + (-57+57)`

`= 0+0`

`=0`

`a)232-(581+132-331)`

`=232-581-132+331`

`=(232-132)-(581-331)`

`=100-250`

`=-150`

`b)[12+(-57)]-[-57-(-12)]`

`=(12-57)-(-57+12)`

`=12-57+57-12`

`=(12-12)-(57-57)`

`=0-0`

`=0`

\(132.9+132=132.\left(9+1\right)=132.10=1320.\)

\(48.17+48.3=48.\left(17+3\right)=48.20=960\)

\(45.48-90.24+145=45.48-45.2.24+145=45.\left(48-2.24\right)+145\)=45.0+145=145

132 . 9 + 132 = 132 . 9 + 132 . 1 = 132 . (9 + 1) = 132 . 10 = 1320

48 . 17 + 48 . 3 = 48 . (17 + 3) = 48 . 20 = 960

45 . 48 - 90 . 24 + 145 = 45 . 48 - 45 . 2 . 24 + 145 = 45 . (48 - 2 . 24) + 145 = 45 . (48 - 48) + 145 = 45 . 0 + 145 = 0 + 145 = 145

754 . 75 - 2262 . 25 + 4560 = 754 . 75 - 754 . 3 . 25 + 4560 = 754 . (75 - 3 . 25) + 4560 = 754 . (75 - 75) + 4560 = 754 . 0 + 4560 = 4560

1050 : 15 - 350 : 5 + 176 = 70 - 70 + 176 = 0 + 176 = 176

a) 576+ 168+ 124+ 132

= (576 +124) + (168+ 132)

= 700 + 300
= 1000

a)576+168+124+132

=(576+124)+(168+132)

=700+300

=1000

b)2377+7969+623-969

=(2377+623)+(7969-969)

=3000+7000

=10000

a) \(232-\left(581+132-331\right)\)

\(=232-581-132+331\)

\(=\left(232-132\right)+\left(331-581\right)\)

\(=100-250\)

\(=-150\)

b) \(\left[12+\left(-57\right)\right]-\left[-57-\left(-12\right)\right]\)

\(=12-57+57-12\)

\(=\left(12-12\right)+\left(57-57\right)\)

\(=0+0\)

\(=0\)

a) 232 - ( 581 + 132 - 331 )

= 232 - 581 - 132 + 331

= ( 232 - 132 ) - ( 581 - 331 )

= 100 - 250

= -150

Ta có:

\(\frac{132\times34\times7}{24\times35\times22}=\frac{12\times11\times17\times2\times7}{12\times2\times5\times7\times2\times11}\)

                              \(=\frac{17}{2\times5}\)

                              \(=\frac{17}{10}\)

Học tốt 

\(\frac{132\times34\times7}{24\times35\times22}\)

\(=\frac{22\times6\times34\times7}{4\times6\times7\times5\times22}\)

\(=\frac{34}{4\times5}\)[Chia cả tử số và mẫu số cho (22x6x7)]

\(=\frac{34}{20}=\frac{17}{10}\)

Chúc bạn học tốt !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!