quarter 2 test 5 review xvii. divisibility xviii. prime/composite & prime factorization xix. gcf...

Quarter 2Test 5 Review

XVII. DivisibilityXVIII. Prime/Composite & Prime

FactorizationXIX. GCFXX. LCM

XXI. Equivalent FractionsXXII. Simplest Form

Review of Simplest Form:

Write each fraction in simplest form.1) 35 2) 46 3) 56 4)

64 40 8 72

4

1) 7/8 2) 5 ¾ 3) 7/9 4) 16

Find the GCF and LCM for each set of numbers.

1) 15, 18, 24 2) 20, 32, 48

3) 12, 18, 36 4) 15, 60, 75

1) GCF: 3 LCM: 360 2) GCF: 4 LCM: 480

3) GCF: 6 LCM: 36 4) GCF: 15 LCM: 300

Make equivalent fractions.1) 3/4 = 21/? 2) 2/3 = ?/27 3) ?/15 = 108/135

1) ?= 28 2) ? =18 3) ?= 12

1) 34

2) 22 x 52

3) 25 x 3 x 5

Give the prime factorization of each number in exponential form in

ascending order. 1 ) 81 2) 100 3) 480

Answers: 1) 2, 3, 4, 6 2) 2, 4, 5, 10 3) 2, 3, 6

4) 2, 3, 6 5) 2, 3, 4, 6, 9 6) 2, 3, 4, 5, 6, 9, 10

Tell if the given number is divisible by 2, 3, 4, 5, 6, 9, 10.

1) 312 2) 140 3) 1384) 762 5) 864 6) 900

Write each as a fraction.

1) 2 3/5 2) 7 3) 5 8/11

1) 13/5 2) 7/1 3) 63/11

Remember, on the day of the test, to bring at least two pencils with erasers!