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Generation Date: 08/18/2010
Generated By: Bob Osborne
Odd vs. Even
1. Which of the following numbers is an odd number?
A. 4,132
B. 8,524
C. 7,396
D. 9,145
Number Lines
2.
18
19
20
21
What position on the number line is the red dot located?
A. 18.75
B. 17.5
C. 18.25
D. 18
Odd vs. Even
3. Which of the following numbers is an even number?
A. 9,388
B. 1,791
C. 8,271
D. 2,765
Number Lines
4.
0
1
2
What value does the red dot represent on the number line?
A. 3/5
B. 2/5
C. 3/6
D. 1/5
Odd vs. Even
5. Which set of numbers contains only odd numbers?
A. 70 , 140 , 140 , 564
B. 71 , 143 , 141 , 565
C. 71 , 140 , 141 , 565
D. 35 , 140 , 71 , 141
Answers
1. D
2. C
3. A
4. B
5. B
Explanations
1. Odd numbers are numbers that are NOT divisible by 2. Look at the digit in the ones
place. If the digit is 1, 3, 5, 7, or 9, then the number is odd.
2. The numbers given on this number line are consecutive whole numbers. Notice there are
3 tick marks between the numbers on the number line. This means that the tick marks
between the numbers represent fractions of whole numbers. The fact that there are 3 tick
marks between the numbers tells you that the number line is divided into fourths (or
0.25).
To figure out where the red dot is located, if it is not located at a whole number value,
find the nearest whole number. Then, either add (if the red dot is to the right) or subtract
(if the red dot is to the left) by 0.25 for each tick mark. The red dot is located at 18.25
on this number line.
3. Even numbers are numbers that are divisible by 2. Look at the digit in the ones place. If
the digit is 0, 2, 4, 6, or 8, then the number is even.
4. The red dot is between 0 and 1. There are four tick marks between 0 and 1. Therefore,
each tick mark between the numbers represents 1/5. The red dot is two marks to the right
of 0, so the red dot is at point 2/5.
5. An odd number is a number that is not divisible by two.
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