Lesson 65 extends the discussion of fractions in quotients, showing clearly where the numerator and denominator come from. Lesson 102 begins with an application illustrating the use of this process, and gives the steps in a simple example using the standard algorithm and remainder notation. Lesson 103 introduces one way to estimate the first digit of the quotient. Lesson 104 shows another technique, and extends this to estimates for the second digit as well. The steps in the standard algorithm are clearly explained such that students could learn them from the text.
Short division is covered, as is the use and meaning of representing the remainder as a fraction.
Checking division using multiplication is covered, but the text falls short of using 3-digit divisors. The first lesson on this topic introduces the concept by asking about and explaining a tenth of a tenth. The explanation is given in the text with illustrations. The solution, one hundredth, is illustrated. The process is annotated both as the multiplication of fractions and the multiplication of decimals.