Odpowiedź:
a)2*9*50*3 = 18 * 50 * 3 = 900 * 3 = 2700
250:5:2 = 50 : 2 = 25
b)81-44:2²+30 = 81 - 44 : 4 + 30 = 81 - 11 + 30 = 70 + 30 = 100
c)340-4* ( 34+ 36) = 340 - 4 * 70 = 340 - 280 = 60
9+480:(94-34) = 9 + 480 : 60 = 9 + 8 = 17
d) 66-6*(59-7*8) = 66 - 6 * (59 - 56) = 66 - 6 * 3 = 66 - 18 = 48
(6*7+12*4):10 = (42 + 48) : 10 = 90 : 10 = 9
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Odpowiedź:
a)2*9*50*3 = 18 * 50 * 3 = 900 * 3 = 2700
250:5:2 = 50 : 2 = 25
b)81-44:2²+30 = 81 - 44 : 4 + 30 = 81 - 11 + 30 = 70 + 30 = 100
c)340-4* ( 34+ 36) = 340 - 4 * 70 = 340 - 280 = 60
9+480:(94-34) = 9 + 480 : 60 = 9 + 8 = 17
d) 66-6*(59-7*8) = 66 - 6 * (59 - 56) = 66 - 6 * 3 = 66 - 18 = 48
(6*7+12*4):10 = (42 + 48) : 10 = 90 : 10 = 9
Szczegółowe wyjaśnienie: