Factors and Multiples

Fraction Equivalence and Comparison

Adding and Subtracting Fractions

Multiplying Fractions and Whole Numbers

Relating Fractions and Decimals

100

These are the factor pairs for 20.

What are: 1 and 20, 2 and 10, and 4 and 5

100

Multiply to find 3 equivalent fractions for 1/2.

Sample answers:

What are 2/4, 3/6, and 4/8 (multiply the numerator and the denominator by the same number)

100

What is 2/7 + 3/7?

What is 5/7?

100

What is 6 x 7/8?

What is 5 2/8 (or 5 1/4 for bonus points!)

100

Compare 0.18 to 0.81

0.81 ("81 hundredths") is greater than 0.18 ("18 hundredths).

200

Prime or Composite? (Be prepare to explain!)

A teacher has 29 students in class. Can she separate the students into equal groups?

No; 29 is a prime number, which means that it is only divisible by 1 and itself.

200

DIVIDE to find an equivalent fraction for 18/32.

9/16 (the greatest common multiple is 2)

Multiples of 18: 1, 2, 3,6,9, 18

Multiples of 32: 1, 2, 4, 8, 16, 32

200

What is 2 + 7/8?

What is 2 7/8?

200

DAILY DOUBLE!

Compare: 7 x 2/4 and 5 x 3/4

14/4 is less than 15/4, so 5 x 3/4 is bigger

200

Compare 5/10 and 0.5

They are the same. (One is written in fraction form and the other in decimal form.)

300

DAILY DOUBLE!

Explain the DIVISIBILITY RULE for 6.

The number has to be even and divisible by 3.

300

Compare. You MUST rewrite both fractions with a common denominator!

4/5 and 9/15

4/5 is equivalent to 12/15. This is greater than 9/15.

300

What is 6/8 + 5/8? (Your final answer will be a mixed number)

What is 11/8 (1 and 3/8)

300

What is 3 x 1 1/2?

What is 4 1/2?

300

What is 7/100 as a decimal?

What is 0.07?

400

Use DIVISIBILITY RULES: Is 1 a factor of 317? Explain how you know!

Yes; 1 is a factor of EVERY number! (the number times 1 gets the number)

400

Compare. You MUST rewrite both fractions as equivalent fractions with a common denominator.

5/4 and 8/7

35/28 and 32/28. 5/4 is greater.

400

What IS a mixed number?

What is a whole number plus a fraction?

400

A small bag of popcorn has 1 7/8 cups of popcorn. A large bag has 7 times as many cups of popcorn as a small bag. How many cups of popcorn are in the large bag?

13 1/8

400

What is 0.83 - 0. 19?

What is 0.64?

500

A city mayor buys 27 solar panels. She wants to organize the panels into a rectangular array. How many different arrays can she make? (Hint: Consider ALL WAYS that factor pairs can be laid out.)

What is FOUR?

1 and 27, 3 and 9, 27 and 1, 9 and 3 (Remember, these are ARRAYS, not factor pairs!)

500

A black bear hibernates for 7/12 of one year. A bat hibernates for 1/4 of one year. Which animal hibernates longer? Explain!

The bear hibernates longer. 1/4 of a year is equal to 3/12. (Multiply the numerator and the denominator by 3.)

500

What is 5 3/6 - 2 5/6? (Hint: Turn both mixed numbers into improper fractions.)

What is 2 4/6 (or 2 and 2/3 for bonus points!)

500

What two whole numbers does the mixed number 4 2/3 fall between?

What are 4 and 5?

500

What is 8/10 + 0.05?

What is 85/100 or 0.85?