Question

Which expression is equal to 3 × 8?

A.

(3 × 4) × (3 × 4)

B.

3 × (4 × 4)

C.

(3 × 4) + (3 × 4)

D.

(2 × 4) + (1 × 4)

Answer 1

To find which expression is equal to \(3 \times 8\), we can first calculate \(3 \times 8\):

\[
3 \times 8 = 24
\]

Now, let's evaluate each option.

A. \( (3 \times 4) \times (3 \times 4) \)
\[
(3 \times 4) = 12 \Rightarrow (3 \times 4) \times (3 \times 4) = 12 \times 12 = 144
\]

B. \( 3 \times (4 \times 4) \)
\[
(4 \times 4) = 16 \Rightarrow 3 \times 16 = 48
\]

C. \( (3 \times 4) + (3 \times 4) \)
\[
(3 \times 4) = 12 \Rightarrow (3 \times 4) + (3 \times 4) = 12 + 12 = 24
\]

D. \( (2 \times 4) + (1 \times 4) \)
\[
(2 \times 4) = 8 \quad \text{and} \quad (1 \times 4) = 4 \Rightarrow (2 \times 4) + (1 \times 4) = 8 + 4 = 12
\]

Now we compare the results:

- A = 144
- B = 48
- C = 24
- D = 12

The expression that is equal to \(3 \times 8\) (which is 24) is:

**C. \( (3 \times 4) + (3 \times 4) \)**.