Tia's teacher asked her to find the product of 8 and 207 in her head. Which of the following describes the best way for Tia to m
entally calculate the answer? a. Multiply 8 by 200 and subtract 8 times 7.
b. Multiply 8 by 200 and add 8 times 7.
c. Multiply 8 by 210 and subtract 8 times 7.
