13 + (-5) =
Operaciones con números enteros I

Quiz
•
Mathematics
•
6th Grade
•
Medium
El taller de Dédalo
Used 10+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
18
8
-18
-8
Answer explanation
13 + (-5) = 13 - 5 = 8
Cuando tengo un signo delante de un paréntesis:
- Si es +, quitamos el paréntesis y dejamos el signo de lo que estaba dentro.
- Si es-, quitamos el paréntesis y cambiamos el signo de lo que estaba dentro.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
24 - (-7) =
31
-31
17
-17
Answer explanation
24 - (-7) = 24 + 7 = 31
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4 + (-13) - 2 =
16
11
-11
15
Answer explanation
4 + (-13) - 2 = 4 - 13 - 2 = - 9 - 2 = - 11
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(-5) + (-8) + (+6) =
19
7
-7
-9
Answer explanation
Como delante del (-5)no hay nada, se entiende que es de signo positivo:
(-5) + (-8) + (+6) = - 5 - 8 + 6 = - 13 + 6 = - 7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
18 - (-6) + 2 - (+4) =
-22
10
30
22
Answer explanation
18 - (-6) + 2 - (+4) = 18 + 6 + 2 - 4 = 26 - 4 = 22
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7 · (-3) =
10
-10
-21
21
Answer explanation
Para multiplicar y dividir números enteros, hay que tener en cuenta que:
+ · + = +
+ · - = -
- · + = -
- · - = +
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(-14) : (+7) =
-28
21
- 2
2
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