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Documento de introducción CD Delta 5 - El Educador

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Nombre: ________________________ Fecha: ___________________<br />

© <strong>Delta</strong>, Grupo Editorial Norma<br />

Unidad 2<br />

1. I<strong>de</strong>ntifica la propiedad que justifica cada igualdad.<br />

a. 4 x 1 = 4 ______________________<br />

b. 5 x (9 x 7) = (5 x 9) x 7 ______________________<br />

c. 0 x 10 = 0 ______________________<br />

d. 1 x 12 = 12 ______________________<br />

e. 12 x (5 + 6) = 12 x 5 + 12 x 6 ______________________<br />

f. 11 x (12 x 8) = (11 x 12) x 8 ______________________<br />

2. Halla cada producto.<br />

a. 12<br />

x 13<br />

d. 129<br />

x 88<br />

3. Estima cada producto.<br />

a. 9<br />

x 17 __________<br />

d. 41<br />

x 72 __________<br />

4. Nombra las siguientes figuras geométricas.<br />

a. XY ______________________ b. Z ______________________<br />

c. FR ______________________ d. DM ______________________<br />

e. WS ______________________ f. A ______________________<br />

5. Menciona pares <strong>de</strong> rectas paralelas.<br />

a. ____________________<br />

b. ____________________<br />

c. ____________________<br />

d. ____________________<br />

b. 56<br />

x 14<br />

e. 214<br />

x 342<br />

b. 63<br />

x 88 __________<br />

e. 7<br />

x 54 __________<br />

c. 345<br />

x 45<br />

f. 621<br />

x 762<br />

c. 99<br />

x 28 __________<br />

f. 39<br />

x 97 __________

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