1/ 5-(1997-2005)+1997 2/4567+(1234-4567)-4 3/1579-(53+1579)-(-53) 4/13579-(14-53)+(13579) 5/2001-15+54-2001-54 6/14537-4+(5-14537) 7/6-(5-5847)+5-5847

0 bình luận về “1/ 5-(1997-2005)+1997 2/4567+(1234-4567)-4 3/1579-(53+1579)-(-53) 4/13579-(14-53)+(13579) 5/2001-15+54-2001-54 6/14537-4+(5-14537) 7/6-(5-5847)+5-5847”

1. Đáp án:

    

   Giải thích các bước giải:

   1/ 5-(1997-2005)+1997

   ⇒5-1997+2005+1997

   ⇒2010

   2/4567+(1234-4567)-4

   ⇒4567+1234-4567-4

   ⇒1230

   3/1579-(53+1579)-(-53)

   ⇒1579-53-1579+53

   ⇒0

   4/13579-(14-53)+(13579)

   ⇒13579-14+53+13579

   ⇒27158+39

   5/2001-15+54-2001-54

   ⇒(2001-2001)+(54-54)-15

   ⇒-15

   6/14537-4+(5-14537)

   ⇒14537-4+5-14537

   ⇒1

   7/6-(5-5847)+5-5847

   ⇒6-5+5847+5-5847

   ⇒6

   8/35-17+1993-35-1993

   ⇒(35-35)+(1993-1993)-17

   ⇒-17

   9/-48725-(357-48725)+300

   ⇒-48725-357+48725+300

   ⇒-57

   10/3579-(49-5+3579)+49

   ⇒3579-49+5-3579+49

   ⇒5

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2. `1) 5-(1997-2005)+1997`

   `= 5 – 1997 + 2005 + 1997`

   `= 5 + 2005`

   `= 2010`

   `2) 4567+(1234-4567)-4`

   `= 4567 + 1234 – 4567 – 4`

   `= 1234 – 4`

   `= 1230`

   `3) 1579-(53+1579)-(-53)`

   `= 1579 – 53 – 1579 + 53`

   `= 0`

   `4) 13579-(14-53)+(13579)`

   `= 13579 – 14 + 53 + 13579`

   `= -14 + 53`

   `= 39 `

   `5) 2001-15+54-2001-54`

   `= 2001 – 2011 + 54 – 54 – 15`

   `= -15`

   `6) 14537-4+(5-14537)`

   `= 14537- 4 + 5- 14537 `

   `= -4 + 5`

   `= 1`

   `7) 6 – ( 5 – 5847 ) + 5 – 5847`

   = 6 – 5 + 5847 + 5 – 5847`

   `= 6`

   `8) 35 – 17 + 1993 – 35 – 1993`

   `= 35 – 35 + 1993 – 1993 – 17`

   `= -17`

   `9) -48725-(357-48725)+300`

   `= -48725 – 357 + 48725 + 300`

   `= -357 + 300`

   `= -357`

   `10) 3579 – ( 49 – 5 + 3579 ) + 49`

   `= 3579 – 49 – 5 – 3589 + 49`

   `= -5`

    

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