Review the First Semester

25/11/2015[م]

1-A) Find the Least Common Multiple ( LCM) of 6 and 8 ?

The multiples of 6 are ,..... …… ,………, ….……, ………, …………, ………, ………, ……………..

The multiples of 8 are ………, ………, ………., ………, ………, …………, …………, …………..

The common multiples of 6 and 8 are ……………,…………….

The L C M is ………………

B) Find the Greatest Common Factor (GCF) of 18 and 24 ?

The factors of 18 are …., …….., ………, ………, …………, ……….

The factors of 24 are …. , ……., ………, ………, …………, ……….,………., …………..

The common factors are ……………, …………., ……………, ………………

The G C F is ……………………………………..

2- A)Write the ratio in three ways. Write your answer in simplest form.

rectangles to triangles

...... , ...... , ......

B) Write each ratio as a fraction in simplest form

1. 3 pens to 6 pencils 2. 6 soccer balls to 10 foot balls

……………………………………. ……………………………………….

3-Write each rate as a unit rate.

a. 150 miles in 3 hours b. $18 for 3 CDs

…………………………………………. …………………………………

4.The Jassems family bought five concert tickets for AED 300.what was the price per ticket?......

………………………………………………………………………………………………..

. Complete each ratio table . 5

6 / 2 / 1 / Number of boxes
24 / 8 / Price(AED)

b.To make 20 apple pies, you need about 2 kilogram of apples . How many kilograms of apples do you need to make 50 apple pies?

20 / Number of pies
2 / kilograms of apples

6. The table shows the total time it took hammed to read 0 ,1 , 2 or 3 pages of the book .

Hammed Reading
Total minutes , y / Number of pages, x
0 / 0
5 / 1
10 / 2
15 / 3

a. List the information as ordered pairs.

( ……, …….. ) ( …… , ……. ) ( ….. , …..) ( ….. , …… )

b. Graph the ordered pairs .

7 . Determine if the pair of rates are equivalent. Explain your reasoning.

$15 for 5 pairs of socks;

$25 for 10 pairs of socks

…………………………………………………………

Since the rates …………………….the same unit , they are ………………………

8. Fill the blanks using the word's (decimal ,fraction , mixed number and percent)

A . is a …………………………………………………………………………………

B . 7.45 is a …………………………………………………………………………………

C . 65% is a ………………………………………………………………………………..

D . is a …………………………………………….………………………………..

9. Write each decimal as a fraction or mixed number in simplest form.

1. 0.8 = 2. 6.08 =

10. Write each fraction or mixed number as a decimal.

A . = b. =

11 . Write each percent as a fraction or as a mixed number in simplest form.

1. 75% = 2. 245% = 3. 0.5% =

12. Write each percent as a decimal.

1. 5% = 2. 37% =

3. 900% = 4. 0.45% =

13. Write each decimal as a percent.

1. 3.9 = 2. 8 = 3. 0. 025=

14. Replace each with <, >, or = to make a true statement.

3 2 0.25

40% 0.400 8% 35 350%

15. Order the fractions from least to greatest.

, , ,

…………………………………………………………………………………………………………

………………………………………………………………………………………………………..

16. Complete the table :

Percent number / Decimal number / Mixed number or
Fraction in simplest form
…………………… / …………………………… /
%45 / ………………………. / ………………………
…………………………… / 0.008 / ……………………………
345% / ……………………….. / ………………………………

17. Find the percent of each number.

1. 25% of 300 2. 150% of 20

18 . SHOPPING Ali wants to buy a pair of shoes that regularly costs AED180.

Today, the shoes are on sale for 60% of the original price. How much

will Ali have to pay for the shoes?

19. Estimate each product.

1) 3.5 9.3 ………. 2) 3)

………………………… …………………………. ……………………………

4) 5) 6)

………………………… …………………………. ……………………………

20 . Find:

1) 32.5 + 2.95 2) 18 – 8.39 3) 6.154 – 2.38

…………………. ………………….. …………………….

4) 5) 6)

…………………. ………………….. …………………….

21- A giraffe can run up to 46.93 feet per second. How far could a giraffe run in 1.8 seconds?

…………………………………………………………………………………..

…………………………………………………………………………………….

A mile is equal to 1.609 kilometers. How many kilometers is 3.5 miles? 22-

………………………………………………………………………………………

Estimate : 23-

1) ………… . 2) ………..…..

………………………… ………………………………

3) of 34 ………… 4) ………………..

………………………… ………………………………

5) …………….. 6) ………………….

………………………… ………………………………

7) …………. 8) ……………….

………………………… ………………………………

24. Estimate each product( Round to 0 , or 1 )

Find and write your answer in simplest form. 25-

1) = ………………….. 2) = …………………….

………………………………… ………………………………

3) = …………………….. 4) = ……………………..

………………………………….. ………………………………….

26- Ahmed would like to finish of his book by next Friday. If the book has 205 pages, about how many pages does he need to read?

…………………………………………………………………………………………

…………………………………………………………………………………………..

27-

…………………………………………………………………………………………

28 - Round each fraction to 0 , or 1.

≈ ………… ≈ …………. ≈…………

دولة الامارات العربية المتحدة United Arab Emirates وزارة التربية والتعليم Ministry of Education

مدارس الغد Madares Al-Ghad

1 - Find the L C M of 5 and 6

Multiples of 5 : ……..,…..…,……..,…….,…….,………,……..

Multiples of 6 : …….. ,……..,……..,…….,………,……..

The L C M is …………………………………………

2-Find the GCF of 15 and 20.

Factors of 15 : ………….,……....,……...,……..…

Factors of 20 : ………..,… …...,……...,……....,…….…,……….

The G C F is ……………………………………………..

Write the ratio in two ways. 3-

triangles to rectangles ……………,……….………..

4. Write the rate "125 feet in 5 seconds" as a unit rate

……………………………………………………………………………………………………………………………………………………………………………………………

5. Determine if the pair of rates are equivalent

12 minutes to drive 36 laps ; 20 minutes to drive 60 laps .

…………………………………………………………………………………………………………

6. Complete the ratio table

3
6 / 2 / 1 / Distance Run (km)
24 / 8 / Time (min)
5

7. MONEY One Dirham is worth 4 quarters. The table below showsthis relationship.

a. Complete the table

b. Graph the ordered pairs.

Quarters in a Dirham
Ordered pairs(x ,y ) / Number of Quarters y / Number of Dirham x
(……,…….) / 4 / 1
(……,…….) / 8 / 2
(……,…….) / 12 / 3
(……,…….) / 16 / 4

8. Complete the table:

4
8

9. Match each number in the column A with a number equal to it in column B

B
345%
0.375
0.005
A
0.5%
3.45
75%
3

10. Find the 75% of 240

………………………………………………………………………………………..

11-Fill in each with <, >, or = to make a true statement.

1. 2. 0.25 3 . 42% 0.4

4. 8% 5. 3.5 350% 6 . 0.25% 25

12.Order the fractions from least to greatest.

……………………………………………………………………………………………………………………………………………

…………………………………………………………………………………………………………………………………………

13. Find each sum or difference

1. 1.546 + 0.07 = …………………………………………………………….

2. 50 - 43.25= ………………………………………………………………

3. 18.31 - 8.25 =………………………………………………………………

14. SHOPPING Fatimah bought Dress for AED150.75 and new shoes for

AED85.75 . How much did Fatimah spend on Dress and shoes altogether?

………………………………………………………………………………………………..

………………………………………………………………………………………….

15. Estimate each product.

a. 35.1 ……… b. 12.6 x 5.33 ≈ ……..

× 10.2 ………

______

16.Multiply.

a. 0.8 ×6 =…………….. b. 0.7 ×1. 4 =………………

17 . A giraffe can run up to 15.3 meter per second . How far could a giraffe run in 2.5 seconds? Justify your answer.

………………………………………………………………………………………………………………

18 . Estimate each product.

a) ………

b) ………

c) ………….

19 . Round each fraction to 0 , or 1

………….. ………………. ……………………….

20. Estimate each product( Round to 0 , or 1 )

1) 2)

Multiply. Write in simplest form.

10 =………………… =…………………

22 . SPORTS Of the sixth graders in a school , play at least one sport. Of those, play on a team. What fraction of the sixth graders play a sport on a team?

……………………………………………………………………………………………………………… End