bài 2: 1/ -7264+(1543+7264) 2/(144-97)-144 3/(-145)-(18-145) 4/111+(-11+27) 5/(27+514)-(486-73) 6/(36+79)+145-79-36) 7/10-[12-(-9-1)] 8/(38-29+43)-(43

bài 2:
1/ -7264+(1543+7264)
2/(144-97)-144
3/(-145)-(18-145)
4/111+(-11+27)
5/(27+514)-(486-73)
6/(36+79)+145-79-36)
7/10-[12-(-9-1)]
8/(38-29+43)-(43+38)
9/271-[(-43)+271-(-17)]
10/-144-[29-(+144)-(+144)]

0 bình luận về “bài 2: 1/ -7264+(1543+7264) 2/(144-97)-144 3/(-145)-(18-145) 4/111+(-11+27) 5/(27+514)-(486-73) 6/(36+79)+145-79-36) 7/10-[12-(-9-1)] 8/(38-29+43)-(43”

  1. Đáp án:

    1/-7264+(1543+7264)

    =-7264+8807

    =1543

    2/(144-97)-144

    =47-144

    =-97

    3/(-145)-(18-145)

    =-145-(-127)

    =-145+127

    =-18

    4/111+(-11+27)

    =111+16

    =127

    5/(27+514)-(486-73)

    =541-413

    =128

    6/(36+79)+145-79-36

    =36+79+145-79-36

    =(36-36)+(79-79)+145

    =0+0+145

    =145

    7/10-[12-(-9-1)]

    =10-(12+10)

    =10-22

    =-12

    8/(38-29+43)-(43+38)

    =52-81

    =-29

    9/271-[(-43)+271-(-17)]

    =271-[228+17]

    =271-245

    =26

    10/-144-[29-(+144)-(+144)]

    =-144-[-115-144]

    =-144+259

    =112

     

    Bình luận

Viết một bình luận