Question

Câu 1:

a) 25 - (-75) + 32 - (32+75)

b)|-127| - 18.(5-6)

c)24.(16-5)-16.(24-5)

Ghi lời giải nha các bạn,ai nhanh mình tick nha

Answer 1

Câu 1 :

a) 25 - (-75) + 32 - (32 + 75)

= 25 + 75  + 32 - 32 - 75

= 25 + (75 - 75) + (32 - 32)

= 25 + 0 + 0

= 25

b) |-127| - 18 . (5  - 6)

= 127 - 18 . (-1)

= 127 + 18

= 145

c) 24.(16 - 5) - 16.(24 - 5)

= 24.11 - 16.19

= 16.16,5 - 16.19

= 16.(16,5 - 19)

= 16.(-2,5)

= -40

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Answer 2

a)25-(-75)+32-(32+75)=25-(-75)+32-107=25

b)l-127l-18.(5-6)=127-18.(-1)=127-(-18)=145

c)24.(16-5)-16.(24-15)=24.11-16.9=264-144=120

Answer 3

\(a,25-\left(-75\right)+32-\left(32+75\right)\)

\(=25+75+32-32-75\)

\(=25+\left(75-75\right)+\left(32-32\right)\)

\(=25+0+0\)

\(=25\)

\(b,\left|-127\right|-18.\left(5-6\right)\)

\(=127-18.\left(-1\right)\)

\(=127+18\)

\(=145\)

\(c,24.\left(16-5\right)-16.\left(24-5\right)\)

\(=24.16-24.5-16.24+16.5\)

\(=\left(24.16-16.24\right)-\left(24.5-16.5\right)\)

\(=24.\left(16-16\right)-5.\left(24-16\right)\)

\(=24.0-5.8\)

\(=0-40\)

\(=-40\)