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Chapter 2: Q12. (page 105)

Perform the indicated operation.

7.8+-9.3

Short Answer

Expert verified

Solution of given expression is -1.5.

Step by step solution

01

Step-1- Addition/subtraction of two decimals

7.8+-9.3

This can be written as,

7.8+-9.3=7.8-9.3.

02

Step-2- Simplifying the expression

Taking -1common from both the terms, we get

7.8+−9.3=−19.3−7.87.8+−9.3=−11.57.8+−9.3=−1.5

03

Step-3- Conclusion

Therefore, the solution of given expression is -1.5.

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