Evaluate : a) -26 –20 + 33 – ( - 33) +21 + ( - 24)– (- 25) b) use number line and add the following: 9 + ( - 6 )

To do: Evaluate the following

Solution:

a) $-26 –20 + 33 – ( - 33) +21 + ( - 24)– (- 25)$

=$ -26 –20 + 33 – ( - 33) +21 + ( - 24)– (- 25)$

=$ -26 -20 + 33 + 33 + 21 -24 + 25$

= $33 + 33 + 21 + 25 -26 - 20 -24$

=$ 112 - 70$

= $42$
Therefore, the value of the expression is $42$

b) use number line and add the following: $9 + ( - 6 )$

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Updated on: 10-Oct-2022

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