Report copyright - → 300 500 = 3 5 3. ¿Los 4 7 de qué número es 36? 36 _____ 4 7 × _____ 1 4 7 7 4 ⇒ x = 36 ÷ x = 36 x = 63 4. Resolver 20 3 15 Resolución: 20 3 15 = 4 3 3 = 4 3 × 3 = 9
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