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calculați cât mai rapid: 47×67+53×67
453×250+750×453
Help pls


Răspuns :

47×67+53×67 = 67 x ( 47 + 53) = 67 x 100 = 6700
453×250+750×453 = 453 x ( 250 + 750) = 453 x 1000 = 453000
47×67+53×67=
=67(47+53)
=67x100
=6700

453×250+750×453=
=453(250+750)
=453x1000
=453000