Big 20 - math PDF

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Name: _________________________

Date: _____________

Academic: _______

THE BIG 20 GCF/LCM

Comparing/Ordering Fractions

1) Find the GCF of 32 and 72. 1) Use cross products to compare the fractions:

Multiplying Fractions

Dividing Fractions

1) Multiply. Write in simplest

1) Divide. Write in simplest

form:

form:

7 1 • 8 2

5 7 9 13

3 3 ÷ 4 5

2) In a parade, one school band will march directly behind another school band. All rows must have the same number of students. The first band has 36 students, and the second band has 60 students. What is the greatest number of students who can be in each row?

2) Last month Ellen grew 7 inch, Kelvin grew 8 9 inch, and Grady grew 16 3 inch. Which student 4

2) At least

3 of the 20 4

2) Ms. Tucker has 24 yards of ribbon to use for bows. Each 3 4

questions on a test must be answered correctly to pass. How many questions must be answered correctly to pass?

ribbon. How many bows can she make?

3) Multiply. Write in simplest

3) Divide. Write in simplest

form:

form:

bow requires

yards of

grew the least?

3) What is the LCM of 2 and 15?

3) Write the mixed number as an improper fraction. 2 4 =¿ 7

5 •8 12

7 ÷ 10 8

Write the improper fraction as a mixed number.

19 =¿ 4 4) Pencils are sold in packs of 12, and erasers in packs of 9. What is the least number of packs of pencils and erasers Mr. Johnson should buy so that there are none left over?

4) Use cross products to compare the fractions: 3 1 7 7 7 2

4) Multiply. Write in simplest

4) Divide. Write in simplest

form:

form:

1 1 •4 4 8

1 5 3 ÷1 3 8

Name: _________________________ Date: _____________ 5) Shari, Marcus, and Li went 5) There are two cakes on 5) Find the area of a to the mall today. Shari goes every 10 days, Marcus goes every 4 days, and Li goes every 6 days. How soon will all 3 be at the mall on the same day again?

the counter that are the same size. The first cake has

1 2

of it left. The second

cake has

5 12

of it left.

Academic: _______ 5) A board 8 feet long is cut

rectangular photograph that

1 measures 5 inches by 2 3 1 inches? 4

into pieces. Each piece is

1 2

foot long. How many

pieces can be cut from the board?

Which cake has more left?

THE BIG 20 Adding Integers 1)

Subtracting Integers 1)

-8 + (-23)

Multiplying Integers

Dividing Integers

1)

1)

2)

2)

-99 - (-15)

2) 2)

-56 + 18

18 - 93

+16 ▪ (23)

3) 3)

3)

3)

4)

4)

145 - (-23)

4) 4)

-88 + (-88)

+8 - 65

Name: _________________________ 5) 5)

121 + -212

Date: _____________ 5)

Academic: _______ 5)

-52 - -23

THE BIG 20 Adding Decimals 1)

Subtracting Decimals

Multiplying Decimals

Dividing Decimals

1)

1)

1)

2)

2)

2)

3)

3)

3)

4)

4)

4)

2)

3)

4)

Name: _________________________ 5) 5)

Date: _____________ 5)

Academic: _______ 5)...