Copii au adus la scoala un puzzle.Pe fiecare rand sunt cate3 piese colorate si 2 piese albe.Stiind ca puzzle ul are 7 randuri afla: cate piese are in total,cate piese colorate sunt,cate piese albe sunt?​

Răspuns :

Răspuns:

3×7 =21 piese colorate

2×7=14 piese albe

21+14=35 piese in total

Răspuns:

2x7=14 - piese albe

3x7=21 - piese colorate

14+21=35 - piese in total