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Byju's Answer
Standard VII
Mathematics
Addition and Subtraction of Integers
Work out the ...
Question
Work out the answers to the following calculate the number line.
(
−
5
)
+
(
−
4
)
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Solution
(
−
5
)
+
(
−
4
)
=
−
5
−
4
=
−
9
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0
Similar questions
Q.
Question 70 (iii)
Work out the following multiplication.
12345679
∗
9
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_
_
_
_
_
_
_
_
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Use the result to answer the following questions.
By what number should 12345679 be multiplied to get 888888888?
Q.
Question 70 (iv)
Work out the following multiplication.
12345679
∗
9
_
_
_
_
_
_
_
_
_
_
_
_
_
_
Use the result to answer the following question.
By what number should 12345679 be multiplied to get 999999999?
Q.
Harsha thought of a number. She added
13
to the number then multiplied the result by
4
.
a)Write this as a function as a mapping.Harsha's answer was
6
b)Use inverse functions to work out the number Harsha thought of. Show all your working: ?
Q.
Work out the following divisions:
(
9
x
5
−
15
x
4
−
21
x
2
)
÷
(
3
x
2
)
Q.
Work out the following. Simplify your answers where possible.
a)
7
+
7
8
=
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b)
14
+
7
9
=
_
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