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Worksheets

REVIEW 1

Total questions: 25

Worksheet time: 22mins

Name
Class
Date
1.

Let A and B be two finite sets such that n(A)=20, n(B)=28, and n(AUB)=36, find the n(AB)n\left(A\cap B\right)  cardinality of A intersection B.

(a)  

2.

How many meters are there in 7/5 of a kilometer?

(a)  

3.

What number, when subtracted from -10, will give -4?

(a)  

4.

Find the perimeter of a rectangle having width (x + 6) cm and length (2x - 4) cm.

(a)  

5.

What is the mathematical phrase of the expression "the ratio of two less than thrice a number n and four'?

(a)  

6.

By how much is the product of 12 and -2, less than -14?

(a)  

7.

What integer is closest to 59\sqrt[]{59}  ?

(a)  

8.

What is the largest integer n satsifying 20 - 3n > 6?

(a)  

9.

The sum of the interior angles of a polygon is 1080 degrees. How many sides does it have?

(a)  

10.

Robert is 4 times as old as Tina. In 10 years, he will be twice as old as Tina. How old is Robert now?

(a)  

11.

The supplement of an angle is 6 times its complement. What is the angle in degrees?

(a)  

12.

In a class of 40 students, 27 like Math and 25 like Filipino. At most how many students do not like at least one of these subjects?

(a)  

13.

The sum of two angles a and b is 83 degrees. If b is 7 less than twice a, find b.

(a)  

14.

A bathroom, 2.8 m by 2.1 m is to be tiled by square tiles of side 7 cm. How many tiles will be needed?

(a)  

15.

A car travelled a distance of 23.6 kilometers. How many meters did the car travel?

(a)  

16.

If it takes 6 hours to drive 432 km, how long does it take to drive 72 km?

(a)  

17.

Together, Pearl and Harvey are going to visit their aunt on Sunday. If Pear visits their aunt every 6 days. while Harvey every 8 days, on what day will they visit their aunt together again?

(a)  

18.

In the Math Department of a school, 10 teachers have Yahoo! accounts, 13 have Gmail accounts, and 6 have both accounts. How many teachers in the department have Yahoo, or Gmail accounts?

(a)  

19.

Simplify 3.7\left|-3.7\right|  

(a)  

20.

What values of x satisy the equation 3x25=2?\left|3x-25\right|=2?  

(a)  

21.

Is the set of real numbers closed under division?

(a)  

22.

What property is illustrated by (2)+(3+N)=[(2)+3]+N?\left(-2\right)+\left(3+N\right)=\left[\left(-2\right)+3\right]+N?  

(a)  

23.

How many subsets does the set D = {2, 3, 4, 6, 8} have?

(a)  

24.

Translate the verbal phrase "thrice the number x less than 8" into mathematical expression.

(a)  

25.

What number is midway between -22 and 4 on the number line?

(a)