Find the value of each of the following - Junior Cycle Mathematics - Question 1 - 2022

To solve this, we need to follow the order of operations (PEMDAS/BODMAS). First, we calculate the multiplication (2 × 6):

$2 × 6 = 12$

Now we perform the subtraction:

$7 - 12 = -5$

First, calculate the expression within the parentheses:

$9 - 7 = 2$

Now, add this result to 24:

$24 + 2 = 26$

To calculate 3 raised to the power of 4:

$3^4 = 3 × 3 × 3 × 3 = 81$

First, calculate the difference:

$15 - 8 = 7$

The whole number nearest to 7 is simply 7.

To find the halfway point between 16 and 30, we calculate the average:

$\frac{16 + 30}{2} = \frac{46}{2} = 23$

Thus, the number halfway between 16 and 30 is 23.