Matematika

Pertanyaan

1. jika a : 40 dan b : 10 maka 2× ( a - b ) + ( a + b ) =.......
2.19× 325+2130 : 10 - ( 9345 - 1234 )=.....
3. 456 × ( 1000 : 125 ) =.......
tolong yaa teman teman
dijawab semuanya dan yg benar yaa

2 Jawaban

  • 1. jika a : 40 dan b : 10 maka
     2× ( a - b ) + ( a + b )
    = 2 x ( 40 - 10 ) + ( 40 + 10 )
    = (2 x ( 30 )) + ( 50 )
    = 60 + 50 
    = 110

    2.19× 325+2130 : 10 - ( 9345 - 1234 )
    = (19 x 325) + (2130 : 10) - (9345 - 1234)
    = (6175) + (213) - (8111)
    = -1723

    3. 456 × ( 1000 : 125 )
    = 456 x 8
    = 3648
  • 1. 2× (40-10) + (40+10) = 2× 30+50 =110
    2. 184`
    3.456×8 =3648

    Maaf kalo nomer 2 salah

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