Răspuns :
Răspuns:
a)30-5=25
25-5=20
20-5=15
25-5=10
10-5=5
b)9-3=6
6-3=3
a) 30=30-5-5-5-5-5=6 ori
30=30-6-6-6-6-6=5 ori
30=30-10-10-10=3 ori
b) 9=9-3-3-3=3 ori
12=12-3-3-3-3=4 ori
15=15-3-3-3-3-3=5 ori
Răspuns:
a)30-5=25
25-5=20
20-5=15
25-5=10
10-5=5
b)9-3=6
6-3=3
a) 30=30-5-5-5-5-5=6 ori
30=30-6-6-6-6-6=5 ori
30=30-10-10-10=3 ori
b) 9=9-3-3-3=3 ori
12=12-3-3-3-3=4 ori
15=15-3-3-3-3-3=5 ori