Section 1.8: Hindu-Arabic Numeration System
Homework Hints

Problems 1-4
There are many problems throughout the text labeled IN YOUR OWN WORDS. Just relax. Do not be afraid to give your opinion. For the most part, these questions do not have "right" or "wrong" answers. You should spend about five minutes in answering each of these questions.

Problems 5-8
See Example 1.

Problems 9-14
These problems ask for the meaning of a particular digit. For example, the numeral 5 in the number 6,058, means 5 tens or 50. On the other hand, in 75,692 the 5 means 5 thousands or 5,000.

Problems 15-28
See Example 3 and use the extended order of operations.

Problems 29-36
See Examples 2 and 4.

Problems 37-42
See Figure 1.2; remember a "bead" counts when it is moved to the center bar.

Problems 43-50
See Figure 1.2; yes, go ahead and draw an abacus.

Note: Homework Hints are given only for the levels 1 and 2 problems. You can also check some sources for homework help on the Internet (see Links, below), or you can call the author at
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