Răspunsuri

2014-03-05T15:13:13+02:00
|____||____||____||____| numar
|____||____|                   jumate
|____|                          sfert

In total ai 7 parti egale. Aflam cat inseamna o parte
147:7=21

Deci
sfert=21
jumate=21+21=42
numar=21+21+21+21=84
2014-03-05T15:15:22+02:00
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7 segmente 147
un segment 147:7=21
4 segmente 84
deci nr e 84