An example of the associative law for addition is

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

1.1 An example of the associative law for addition is: (2)

A. 7(2 x 5) = 7 x 2 x 7 x 5

B. 3(4 + 5) = 3 x 4 + 3 x 5

C. 3 + 5 = 5 + 3

D. (2 + 5) + 7 = 2 + (5 + 7)

D. None of the above.

 

1.2 An example of the distributive law is: (2)

A. 7(2 x 5) = 7 x 2 x 7 x 5

B. (2 + 5) + 7 = 2 + (7+ 5)

C. 2 + 5 = 5 + 2

D. 7(2 + 5) = 7 × 2 + 7 × 5

E. None of the above.

 

1.3 The prime factors of 20 are: (2)

 

A. 5; 4

B. 2; 10

C. 2; 5

D. 2; 4; 10 and 20

E. None of the above

1.4 Choose from the following a set of numbers that consists of only prime numbers.(2) A. 1; 2; 3; 5; 7,8

B. 3; 5; 11; 19; 21

C. 2; 3; 7; 11; 13; 15

D. 2; 3; 5; 7; 9

E. None of the above

 

 

1.5 An equivalent common fraction to   is: (2)

A. 25 B.   C. 1,4

D. 0,25

E. None of the above.

 

1.6 The decimal number 0,005 is equivalent to: (2)

 

A. 5 B.

C.

D. 5,00

E. None of the above.

 

1.7 Write the number 2 850 953 in words. (2)

 

A. Two thousand eight hundred and fifty.

B. Two hundred and eighty-five thousand nine hundred and fifty-three.

C. Two million eight hundred and fifty thousand, nine hundred and fifty-three.

D. Two hundred eight hundred and fifty. E. None of the above.

 

1.8 What will the next step of the following calculation be: 4   ÷ 2 (2)

8 4

 

 

A. 3 4

B. 4 × 4

8 2

C. 2

 

D.  

E. None of the above

 

1.9 What will the next step be of the following:   × 2         (2)

 

A. (2 × 6) – (3 × 5)

B. 10  

C.   ×  

D.   ×2,15

E. None of the above

 

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