While in math class, Trunks is called on to solve a math problem: (1000 - 900 * 0.5). Trunks attempts to subtract 900 from 1000 first, but Pilaf interrupts him and correctly states that he must multiply 900 by 0.5 first then subtract the result from 1000. To make his point more tangible, Pilaf uses an example involving a sale.