1. Chapter 2 Practice Test Mastery Test A
Basic Math skills
Chapter 2 Practice Test
Mastery Test A

2. Directions: list the set of all factors of these numbers
DIRECTIONS: LIST THE SET OF MULTIPLES OF THESE NUMBERS
M6 – 0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60….
M15 – 0, 15, 30, 45, 60, 75, 90, 105, 120, 135…
M14 – 0, 14, 28, 42, 56, 70, 84, 98, 112, 126…

3. Directions: give the next three numbers in each pattern
{0, 2, 4, 6, 8, 10, 12, 14} – the pattern is adding two each time (even numbers)
{0, 1, 4, 9, 16, 25, 36} – add the next odd number to the existing number
{1, 3, 6, 10, 15, 21, 28} – add the next number to existing number
DIRECTIONS: CIRCLE THE ANSWERS TO THE FOLLOWING QUESTIONS
Which of these are prime numbers? 23, 3, 41, 59
Which of these are composite numbers? 9, 57, 34, 49
Which number is divisible by 5? 3,240
Which number is divisible by 3? 8,217

4. Directions: write these numbers as the sum of two prime numbers
38: ,
52: , ,
DIRECTIONS: GIVE THE PRIME FACTORIZATION OF THESE NUMBERS
18: 3 X 3 X 2
30: 5 X 2 X 3
42: 7 X 2 X 3
16: 2 X 2 X 2 X 2

5. DIRECTIONS: FIND THE LEAST COMMON MULTIPLE OF EACH PAIR OF NUMBERS
LCM (8,10)
M8 – 0, 8, 16, 24, 32, 40, 48, 56…
M10 – 0, 10, 20, 30, 40, 50, 60…
LCM (9,12)
M9 – 0, 9, 18, 27, 36, 45, 54, 63, 72, 81…
M12 – 0, 12, 24, 36, 48, 60, 72…
LCM (5,15)
M5 – 0, 5, 10, 15, 20, 25, 30, 35, 40…
M15 – 0, 15, 30, 45, 60, 75…

6. Directions: find the greatest common factor of each pair of numbers
GCF (9,18)
F9 – 1, 3, 9
F18 – 1, 2, 3, 6, 9, 18
GCF (12,25)
F12 – 1, 2, 3, 4, 6, 12
F25 – 1, 5, 25
GCF (18,30)
F30 – 1, 2, 3, 5, 6, 10, 15, 30