— Multiplicar por 5 usando ×10/2
a) 56 \times 5 = \dfrac{56 \times 10}{2} = \dfrac{560}{2} = 280
b) 47 \times 5 = \dfrac{470}{2} = 235
c) 27 \times 5 = \dfrac{270}{2} = 135
d) 3{,}4 \times 5 = \dfrac{34}{2} = 17
e) 4{,}8 \times 5 = \dfrac{48}{2} = 24
f) 7{,}2 \times 5 = \dfrac{72}{2} = 36
g) 122 \times 5 = \dfrac{1220}{2} = 610
h) 190 \times 5 = \dfrac{1900}{2} = 950
i) 325 \times 5 = \dfrac{3250}{2} = 1625
j) 405 \times 5 = \dfrac{4050}{2} = 2025










