Page 30 - Algebra 1

Find the LCM for each group of numbers.
3. 8, 12 4. 2, 4, 7
(SB 10) (SB 10)
Multiply or divide.
__ __ 5. 9 · 12 6. 6 ÷ 24
(SB 3) 16 15 (SB 3) 15 30 Identify the coefficients and variables in each expression.
7. 6mn + 4b (2)
8. 5j-9cd+2 (2)
9. 23t+_4w (2) 7
Identify the following statements as true or false. Explain your choice. *10. Verify All real numbers are integers.
(1)
11. Verify All natural numbers are whole numbers. (2)
12. Verify All irrational numbers are real numbers. (2)
Complete the comparisons. Use <, >, or =. 13. 42.53 42.35
(SB 1)
15. Add1_1 +7_2. (SB 3) 8 5
14. _5 _7 (SB 1) 9 12
3 4
16. Measurement Use braces and digits to designate the set of integers. Which
(1) measurement can be described by the set of integers: temperature or volume?
17. Find the prime factorization of 98. (SB 12)
*18. Error Analysis Two students are trying to simplify the expression x2 ∙ x5. Which (3) student is correct? Explain the error.
19. Verify True or False: A rhombus is always a square. Explain your choice. ( (S S B B 1 14 4) )
20. Write Use the divisibility test to determine if 306 is divisible by 6. Explain your (SB 4) answer.
*21. The expression 36 indicates the number of times 3 is used as a factor. (3) a. Which number in the expression is the base?
b. Which number is the exponent?
c. What is the simplified value of this expression?
Student A
x2 · x5 x2·5 = x10
Student B
x2 · x5 x2+5 = x7
Lesson 3 15