Question

evaluate $248 \cdot r$ when $r = 91$.

Explanation:

Step1: Substitute r with 91

$248 \cdot 91$

Step2: Calculate the product

$248 \times 91 = 248 \times (90 + 1) = 248 \times 90 + 248 \times 1 = 22320 + 248$

Answer:

22568