Tag: concept of directed numbers and number line

Questions Related to concept of directed numbers and number line

Evaluate $(-62) - (+12) $
maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $+74$

  2. $-50$

  3. $-74$

  4. $-72$

Show answer
Correct Option: C
Explanation:

If we are subtracting a negative number from a negative number we add the digits and put a negative sign in Infront of the answer.


$-62-12= -74$

So option C is the correct answer.

$-101-200=$

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $99$

  2. $-99$

  3. $-301$

  4. $301$

Show answer
Correct Option: C
Explanation:

Given that 

We have to find the  value of given expression

$-101-200$

we know that $(-) \times (-) = +$

and  $(+) \times (-) = -$

$-101-200$

$=-301$
So option $C$ is correct

$-67-(-76)=$

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $-143$

  2. $143$

  3. $-9$

  4. $9$

Show answer
Correct Option: D
Explanation:

Given that 

We have to find the  value of given expression

$-67-(-76)$

we know that $(-) \times (-) = +$

and  $(+) \times (-) = -$

$=-67+76$

$=9$
So option $D $ is correct

$-123-456-890=$

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $-100$

  2. $100$

  3. $-1469$

  4. $1469$

Show answer
Correct Option: C
Explanation:

Given that 

We have to find the  value of given expression

$-123-456-890$

we know that $(-) \times (-) = +$

and  $(+) \times (-) = -$

$-123-456-890$

$=-579-890$

$ = -1469$
So option $C$ is correct

Calculate $9-6$

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. 3

  2. -3

  3. 15

  4. -15

Show answer
Correct Option: A
Explanation:

Given that 

We have to find the  value of given expression
$9-6$
we know that $(-) \times (-) = +$
and  $(+) \times (-) = -$
$9-6$
$ = 3$
So option $A$ is correct

Calculate $-123-45-55=?$

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $223$

  2. $232$

  3. $45$

  4. $-223$

Show answer
Correct Option: D
Explanation:

Given that 

We have to find the  value of given expression
$-123-45-55$
we know that $(-) \times (-) = +$
and  $(+) \times (-) = -$
$-123-45-55$
$=-123-100$
$ = -223$
So option $D$ is correct

Additive inverse of $10 $ is

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $0$

  2. $-10$

  3. $8$

  4. none

Show answer
Correct Option: B
Explanation:
Let additive inverse of $10$ be $x$.
$10+x = 0$

$\therefore x = -10$

Evaluate: $89-(-145)=$

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $56$

  2. $-56$

  3. $234$

  4. $-234$

Show answer
Correct Option: C
Explanation:

Given that 

We have to find the  value of given expression
$89-(-145)$
we know that $(-) \times (-) = +$
and  $(+) \times (-) = -$
$=89+145$
$=234$
So option $C $ is correct

Evaluate:$144-(-44)-(-44)=$

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $-232$

  2. $100$

  3. $-100$

  4. $232$

Show answer
Correct Option: D
Explanation:

Given that 

We have to find the  value of given expression
$144-(-44)- (-44)$
we know that $(-) \times (-) = +$
and  $(+) \times (-) = -$
$=144+44+44$
$=144+88$
$ = 232$
So option $D $ is correct

Evaluate: 133−(−23)=133−(−23)=

maths concept of directed numbers and number line subtraction of directed numbers subtraction of integers subtraction of integers on number line

  1. $156$

  2. $136$

  3. $-156$

  4. $-136$

Show answer
Correct Option: A
Explanation:

Given that 

We have to find the  value of given expression
$133-(-23)$
we know that $(-) \times (-) = +$
and  $(+) \times (-) = -$
$=133+23$
$=156$
So option $A $ is correct