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Sumas notables

Authored by Carlos Farias

Mathematics

KG

Used 139+ times

Sumas notables
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

HALLAR:

P = 1 + 2 +3 + ... 80

2340

3240

1240

1340

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

HALLAR :

Q = 2 + 4 +6 +8 +..120

3460

2360

3660

3360

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

HALLAR :

R = 1 + 3 +5+ 7 + ....63

924

624

1024

1042

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

HALLAR :

T = 1 + 2 +3 +4 +5 + 6 + ...200

2100

20100

21100

19100

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Hallar: S=12+22+32+...+202Hallar:\ S=1^2+2^2+3^2+...+20^2  

2850

2860

2870

2890

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calcular la suma de todos los números impares de dos cifras.

2470

2475

2480

2490

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un caño deja caer una gota y a continuación en cada minuto siguiente deja caer una gota más que el anterior. ¿Cuántas gotas cayeron en una hora?

1800

1810

1820

1830

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