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Calculati in doua moduri:

24x(3+7)=

(2+3+4)x3

(5+2+3)x42

REPEDE!!!!
SPEED!!


Răspuns :

24 x 10 =
( 24 x 3) + (24 x 7) =
9 x 3 =
( 9x 2 ) + (9 x 3) + (9 x 4) =
10 x 42 =
( 5 x 42) + (2 x 42) + (3 x 42) =
Calculeasa si  tu
Metoda 1:24x(3+7)=24x10=240
(2+3+4)x3=9x3=27
(5+2+3)x42=10x42=420
Metoda 2: 
24x(3+7)=72+168=240
(2+3+4)x3=6+9+12=27
(5+2+3)x42=210+84+126=420