Question

multiplicar un múltiplo de 5 por un múltiplo de 2
ejemplo:
a) 55× 4 = 11 × 5×2×2=10×22=220
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Answer 1

Respuesta:

$35 \times 12 = 7 \times 5 \times 3 \times 2 \times 2 = 10 \times 42 = 420$

$15 \times 20 = 5 \times 5 \times 3 \times 2 \times 2 = 10 \times 10 \times 3 = 300$

$30 \times 18 = 5 \times 3 \times 3 \times 3 \times 2 \times 2 = 10 \times 54 = 540$

$40 \times 6 = 5 \times 3 \times 2 \times 2 \times 2 \times 2 = 10 \times 24 = 240$

$65 \times 22 = 13 \times 11 \times 5 \times 2 = 10 \times 143 = 1430$