Practice Exam

# Practice Exam - Prime Numbers &amp;amp;amp; Factors 1....

This preview shows pages 1–3. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Prime Numbers &amp; Factors 1. Which of the following are prime numbers and which are composite numbers ? 25, 7, 18, 29, 51 2. What prime numbers are factors of 36? 3. Which of the following are multiples of 3 ? 45, 53, 51, 39, 47 4. Find the prime factors of 27. Answers: 1. Prime: 7, 29 Composite: 25, 18, 51 2. 36 = 2 x 2 x 3 x 3 3. 45, 51, 39 4. 27 = 3 x 3 x 3 Order of Operations 1. -10 + 5 = (-10) + (+5) = ? 2. Add -9, -16, and 25 3. -7 -1 - 3 = (-7) + (-1) + (-3) = ? 4. Add -22 and -13 Answers: 1. -5 2. -0 3. -11 4. -35 Multiply as indicated: 1. 5(-8) = ? 2. -7(3) (2) = ? 3. 6(-1)(-4) = ? 4. -2(3)(-4)(5)(-6) = ? Answers: 1. -40 2. -42 3. 24 4. -720 Multiply and divide as indicated: Answers: 1. -3 2. -1 3. 2 4. -9 Distribution Fractions Solve: 1. What fraction of 1 foot is 11 inches? 2. Represent 3 out of 8 as a fraction. 3. Write the fractions that indicate the relationship of 2 to 3; 8 divided by 9; and 6 out of 7 equal parts 4....
View Full Document

## Practice Exam - Prime Numbers &amp;amp;amp; Factors 1....

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online