72-20 = 25+43 = 14+41 = 47-20 = 3 * 9 = 9 * 2 = 12 : 3 = 21 : 7 =

Выполним математические вычисления:

$$72 - 20 = 52$$

$$25 + 43 = 68$$

$$14 + 41 = 55$$

$$47 - 20 = 27$$

$$3 \cdot 9 = 27$$

$$9 \cdot 2 = 18$$

$$12 : 3 = 4$$

$$21 : 7 = 3$$