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Class 7
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Integers
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Addition and Subtraction of Integers
Addition and Subtraction of Integers
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Addition of Integers
Example
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Formulaes
Subtraction of Integers
Example
Definitions
Formulaes
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Addition of Integers on Number Line
5 mins
Addition of Integers
4 mins
Subtraction of Integers on Number Line
4 mins
Quick Summary With Stories
Addition of Integers
3 mins read
Addition of Integers on number line
3 mins read
Subtraction of Integers on Number Line
2 mins read
Important Questions
Give a positive and a negative integer whose difference is -3
Easy
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>
Fill in the blank.
(
−
4
)
+
______
=
−
1
2
.
Medium
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>
The sum of two integers is -16. If one of them is 53, find the other.
Medium
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>
Find the sum of the first
1
0
0
0
positive integers.
Hard
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>
In a quiz, positive marks are given for correct answers and negative marks are given for incorrect answers. If Jack's scores in five successive rounds were
2
5
,
−
5
,
−
1
0
,
1
5
and
1
0
, what was his total at the end?
Easy
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>
Which of the following statements is CORRECT?
Statement-
1
: When a positive integer and a negative integer are added, we always get a negative integer.
Statement-
2
: When two negative integers are added, we get a positive integer.
Medium
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>
In a class test containing
1
0
questions, '
3
' marks are awarded for every correct answer and
(
−
1
)
mark is for every incorrect answer and '
0
' for questions not attempted.
(i) Gopi gets
5
correct and
5
incorrect answers. What is his score?
(ii) Reshma gets
7
correct answer and
3
incorrect answers. What is her score?
(iii) Reshma gets
3
correct and
4
incorrect answers out of seven questions she attempts. What is her score?
Medium
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If p: when a positive integer and a negative integer are added we always get a negative integer and q: when two negative integers are added, we get a positive integer, then.
Easy
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>
Taking today as zero on the number line, if the day before yesterday is 17 January, what is the date 3
days after tomorrow?
Medium
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>
Find:
(
−
1
3
)
+
3
2
−
8
−
1
Easy
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>