Lesson 5 addresses choosing an operation, and is mainly concerned with selection between multiplying a decimal by a whole number and dividing a decimal by a whole number. In summary, division of decimals only is covered through the division of a decimal by a whole number in relatively simple cases. Of the lessons in this chapter, four are directed toward this topic. Division of a decimal by a decimal is not addressed. Rounding a decimal quotient and the case of repeating decimal quotients are not covered.
Explanations are modestly clear at best.
This topic is either not present or appears to such a minimal extent as to be effectively not present. This topic is either not present or appears to such a minimal extent as to be effectively not present. This topic is not present in the standard portion of the student text. The representation of units in various place-value locations is indicated as repeated multiplications of 10. Exponent notation is introduced with arrows that point to the exponent and base.