Question

9 va rog dau coroana​

Answer 1

Răspuns:

Explicație pas cu pas:

a)  

54 × 432 + 54 × 751 - 183 × 54 = 54 000

= 54 × ( 432 + 751 - 183 ) =

= 54 × ( 1 183 - 183 ) =

= 54 × 1 000 =

= 54 000

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b)  

38 × 643 - 255 × 38 + 38 × 612 =

= 38 × ( 643 - 255 + 612 ) =

= 38 × ( 388 + 612 ) =

= 38 × 1 000 =

= 38 000

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c)

47 × 529 + 616 × 47 - 47 × 145 =

= 47 × ( 529 + 616 - 145 ) =

= 47 × ( 1 145 - 145 ) =

= 47 × 1 000 =

= 47 000

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d)

63 × 192 + 908 × 63 - 63 × 100 =

= 63 × ( 192 + 908 - 100 ) =

= 63 × ( 1 100 - 100 ) =

= 63 × 1 000 =

= 63 000