NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 3: Integers - Fill in the Blanks
Question 48

Question. 48

(−80) + 0 + (−90) = ______.

Answer:

−170

Detailed Answer with Explanation:

Start with the given sum:

(( -80 ) + 0 + ( -90 ))
Adding zero does not change a number:

(( -80 ) + 0 = -80)
Now add (-90) to (-80):

(-80 + ( -90 ))
Both numbers are negative, so keep the minus sign and add the sizes:

(-80 + ( -90 ) = - ( 80 + 90 ))

(80 + 90 = 170)
Therefore:

(- ( 170 ) = -170)

So, (( -80 ) + 0 + ( -90 ) = -170).