classmates. Assessment Direction: Multiply the following numbers mentally. Encircle the letter of the best answer. d. 160 1. 12 x 13 a. 154 b. 156 2. d. 195 13 x 15 a. 165 b. 175 3. 17 x 11 d. 167 b. 187 a. 197 4. 16 x 12 a. 192 b. 182 d. 162 5. 14 x 13 a. 162 b. 172 c. 182 d. 192 c. 158 c. 185 c. 177 c. 172​