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Vanesacojucaru
a fost răspuns

calculati prin scadere repetata citurile
18:9; 21:7; 24:6; 20:4; 40:10; 20:2.

Răspuns :

18:9=2
18-9-9=0

21:7=3
21-7-7-7=0

24:6=4
24-6-6-6-6=0

20:4=5
20-4-4-4-4-4=0

40:10=4
40-10-10-10-10=0

20:2=10
20-2-2-2-2-2-2-2-2-2-2=0
Marcela16
18:9=18-9-9 = 0, 18 : 9 = 2
21:7= 21 -7 -7-7 = 0, 21:7 = 3
24:6 = 24 -6-6-6-6 =0, 24 :6 = 4
20:4 = 20 -4-4-4-4-4 =0, 20:4 = 5
40 :10 = 40 -10-10-10-10 =0, 40:10 = 4
20:2 = 20-2-2-2-2 -2-2-2-2 -2-2 =0, 20:2 = 10

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