March 2021 0 15 Report
Indique la propiedad que se utilizó en cada caso: a. 3 × 1 = 3 _________________
b. 4(5+45)=4x5+4x45_______________________
c.-8+0=-8_____________________________
d. -7 + 3 = 3 + (-7) ______________________________________
e. - 23 + (- 2) = -25 ______________________________________
f. (7 × 5) × 9 = 7 × (5 × 9) ______________________________________
g. 5(3 - 2) = 5 × 3 - 5 × 2 _____________________________________
h. b = 11;c = 5  b × c = 5
plis doy 50 puntos y coronita

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