Question

Perform the indicated operation. (pp. 750–752)

$2.9+8.4$

Short answer

Value of given expression $=11.3$.

Step-by-step solution

Step-1- Use the concept of addition of two decimals

$2.9+8.4$

To add two decimal numbers, first check if they have the same number of digits to the right of the decimal point. If they don't, add zeros to the right of one of the numbers until they do.

Step-2-Find the value of given expression

Here, both the decimals have same number of digits to the right of the decimal point

$2.9+8.4$

Add the two decimals.

$2.9+8.4=11.3$

Step-3-Conclusion

Therefore, the value of given expression $=11.3$.