Question

[Đặng Minh Phương]

a)     205 – [1200 – (4² – 2.3)³] : 40

b)     177 :[2.(4² – 9) + 3²(15 – 10)]

c)     [(25 – 2².3) + (3².4 + 16)]: 5

d)     125(28 + 72) – 25(3².4 + 64)

500 – {5[409 – (2³.3 – 21)²] + 10³} : 15

Answer 1

[💖*•.¸♡ ₷ℴá¡↭ℳųộ¡↭2ƙ7 ♡¸.•*]

a)     205 – [1200 – (4² – 2.3)³] : 40

= 205 – [1200 – ( 16 - 6 )³  ] : 40

= 205 – [1200 – ( 10 )³  ] : 40

= 205 – [1200 – 1000 ] : 40

= 205 – 200 : 40

= 205 – 50

= 155

Answer 2

[💖*•.¸♡ ₷ℴá¡↭ℳųộ¡↭2ƙ7 ♡¸.•*]

b)     177 :[2.(4² – 9) + 3²(15 – 10)]

= 177 :[2.(16 – 9) + 9. 5]

= 177 :[2.7 + 9. 5]

= 177 :[ 14 + 45 ]

= 177 : 59

= 3