Explicación de 709 preguntas reales
(1)(709-4832÷16)×12,
=(709-302)×12,
=407×12,
=4884 ;
(2)98.3-3.32-5.68 11.7,
=(98.3 11.7)-(3.32 5.68),
=110-9,
p>
=101;
(3)0.25×3.2×1.25,
=(0.25×4)×(0.8×1.25),
=1×1,
=1;
(4)13÷[(23 15)×113],
= 13÷[1315×113],
=13÷115,
=13×15,
=5; 5)(15- 18)×5×8,
=15×5×8-18×5×8,
=8-5,
=3.