Grade 3 Fractions and MCAS prep

Vocabulary 1

100

What do you call the top number of a fraction?

numerator

200

These are the numbers you multiply to get a product.

factors

300

If the directions say "Write an inequality to compare these numbers," what symbols do you use?

>  or  < 

greater than or less than

400

What is a quadrilateral?

A polygon with 4 sides.

500

What is a rhombus?

A polygon with 4 sides of equal length.  

Vocabulary 2

100

What do you call the bottom number of a fraction?

 the denominator

200

What is the area of a door that is 3 feet wide and 6 feet tall?  How did you figure that out?

18 square feet.   L X W = A

300

What is the perimeter of a square poster that is 3 feet wide? 

12 feet

400

This is what you call a fraction, such as 1/2, that you can compare other fractions to, since it is easy to visualize.

What is a benchmark fraction?

500

This is what you call two fractions that are equal, such as 2/8 and 1/4.

equivalent fractions

Name that whole number

100

Name 3 multiples of 4.

Any multiples of 4, for example: 4, 8, 12, 16, 20, 24

200

12/4 is equal to what whole number?

3

300

What is the product of 6 and 7?

42

400

Find the difference between 42 and 7.

35

500

Is 8 the sum or the quotient of 2 and 6?

sum

Name that fraction

100

Name a fraction that is equivalent to 1/2.

Any equivalent fraction such as 2/4, 3/6, 4/8, 5/10, etc.

200

Name a fraction that is less than 1/2 and has a denominator of 6.

Either answer s correct: 1/6 or 2/6

300

Name the largest fraction you can that has a 10 in the denominator and is less than one.

9/10

400

How many 4ths are in 1 whole? 1/4, 2/4, 3/4, 4/4, or 5/4? 

4/4

500

Name 3 fractions with an 8 in the denominator that are more than 1/2 and less than 1. 

5/8, 6/8, and 7/8

Compare It

100

Explain the difference in size between 1/3 and 1/6.

If the numerators are the same, you can compare the denominators. The larger the denominator, the smaller the pieces, so 1/6 is smaller than 1/3.

200

Explain how you would compare these two fractions: 2/7 and 3/7.

If the denominators are the same, then all the pieces are the same size. You can then compare the numerators, which is how many there are of each piece. In this case, 3/7 is greater than 2/7.

300

Is this inequality true? How do you know you are right? 3/4 > 4/8

Yes, 3/4 is greater than 4/8. I know because 4/8 is 1/2, and I know 3/4 is more than half. You could also use equivalent fractions to make common denominators: 4/8=2/4, so 3/4 would be greater.

400

Is this true? 2/4 = 5/10 Explain how you know.

Yes. Both fractions are exactly 1/2.

500

Put these fractions in order from least to greatest: 7/8, 1/6, 4/8

1/6, 4/8, 7/8