Find the value of each of the following - Junior Cycle Mathematics - Question 1 - 2021

To find the value of ( 3 \times 4 \times 7 ), calculate step-by-step:

First, multiply ( 3 \times 4 = 12 ).

Then, multiply ( 12 \times 7 = 84 ).

Thus, ( 3 \times 4 \times 7 = 84 ).

To solve ( 3 \times (7 - 5) ), first calculate the expression inside the parentheses:

[ 7 - 5 = 2 ]

Now, multiply:

[ 3 \times 2 = 6 ]

Hence, ( 3 \times (7 - 5) = 6 ).

Shape A is a circle divided into 8 equal parts. To shade in ( \frac{3}{4} ) means shading in 6 parts out of 8.

Therefore, shade 6 out of the 8 sections of the circle.

Shape B is a triangle consisting of 4 smaller triangles. To shade in ( \frac{3}{4} ), you will shade in 3 of the 4 smaller triangles.

Therefore, shade 3 out of the 4 triangles in shape B.

To make the equation true, we can fill the boxes as follows:

[ 5 + 25 = 30 ]

The boxes will contain:

5 + 25 = 30.

This satisfies the statement asking to use each number only once.