* 1. An expression is shown below.
1 4/5 + 1.25 – 2.1
The value of the expression is represented as a fraction. The numerator of the fraction is a
whole number. What is the smallest number that could be the denominator of the fraction?

* 2. Aubrey has a shelf full of books.
• Exactly 1/3 of the books on the shelf are mysteries.
• Aubrey has read 10 of the mysteries on the shelf.
• The number of mysteries Aubrey has read is greater than 1/5 of the number of
mysteries on the shelf and less than 1/4 of the number of mysteries on the shelf.
Which could be the number of books on the shelf?

* 3. The product of 3/8 and any whole number is less than the whole number. Which statement
about the fraction 3/8 is a reason why this is true?

* 4. All the students in a class are sitting at tables.
• There are 6 round tables, and 3 boys and 4 girls are sitting at each round table.
• There are 7 square tables, and 5 boys and 3 girls are sitting at each square table.
• Ms. Martin gives each student in the class 2 books.
Which expression can be used to find the total number of books Ms. Martin gives to the

* 5. Two sides of a polygon are parallel and have the same length. Which statement about the
polygon must be true?

* 6. Martha makes the statement shown below.
When multiplying two whole numbers that end in zeros, the product always has the exact same number of zeros at the end as the number of zeros from the end of the two numbers combined. For example,
the product of 80 × 400 has exactly three zeros at the end since 80 ends in onezero and 400 ends in twozeros. Which expression proves Martha’s statement is not correct?

* 7. A number has an 8 in the hundredths place. The number also contains a digit whose value
is 1/10 the value of the 8 in the hundredths place. Which could be the expanded form of the

* 8. In the expression shown below, a and b represent different whole numbers.
10 a × 10 b (a and b are EXPONENTS)
How many zeros must be in the product of the expression?