Răspuns:
oi albe + oi negre =42
oi albe=oi negre+ 18
oi negre |----|
oi albe |----|+18 total=42 oi
1. Egalam segmentele.
42-18=24
2.Cate oi sunt de fiecare fel.?
oi negre:24:2=12
oi albe:12+18=30
12+30=42
2. Nuci + gutui = 26 pomi
gutui=nuci-6
nuci |----|
gutui |----|-6 total=26 pomi
1. Egalam segmentele.
26+6=32
3. Cati pomi sunt de fiecare fel??
nuci:32:2=16
gutui:16-6=10
V:10+16=26