Estrategias para Multiplicar

▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄ + ▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄ + ▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄

5x4

3 + 3

20

4x9

8 + 8 + 8

9x3

5 + 5 + 5 + 5 + 5 + 5

2x3

3x8

30

▲▲▲▲ + ▲▲▲▲ + ▲▲▲▲+ ▲▲▲▲+ ▲▲▲▲

♫♫♫♫♫ + ♫♫♫♫♫ + ♫♫♫♫♫ + ♫♫♫♫♫ + ♫♫♫♫♫ + ♫♫♫♫♫

9+9+9+9

6

27

6x5

3+3+3+3+3+3+3+3+3

24

✿✿✿ + ✿✿✿

●●●●●●●●● + ●●●●●●●●● + ●●●●●●●●● + ●●●●●●●●●

★★★+★★★+★★★+★★★+★★★+★★★+★★★+★★★+★★★

36

4 + 4 + 4 + 4 + 4