Expression Lab — Worksheet

Expression Lab

Worksheet

Open the Expression Lab module. Change the mode for each part below: Exponents, Build from words, Name the parts, Substitute, Tiles, and Equivalent.

Name: Date:

Part A: Exponents

1. In Exponents mode, set the base to 2 and the exponent to 5. What number is 2^5? 1 pt
Answer:
2. Which is 4 × 4 × 4 written with an exponent? 1 pt
  • 3^4
  • 4^3
  • 4 × 3
  • 4^4
3. Set the base to 5 and the exponent to 3. What number is 5^3? 1 pt
Answer:

Part B: Words and parts

4. In Build from words, choose "subtract y from 5". Which expression matches it? 1 pt
  • 5 − y
  • y − 5
  • 5 + y
  • 5y
5. In Name the parts, look at 3x + 5 and highlight the coefficient. Which number is it? 1 pt
  • 3
  • 5
  • x
  • 3x
6. Look at 4y − 2 and highlight the constant. What is it? 1 pt
  • 4
  • y
  • −2
  • 4y
7. Look at x² + 3x + 1 and highlight the terms. How many terms does it have? 1 pt
Answer:

Part C: Substitute

8. In Substitute mode, choose 3x + 5 and set x = 4. What is the value? 1 pt
Answer:
9. Choose V = s³ and set s = 3. What is V? 1 pt
Answer:
10. Choose A = 6s² and set s = 2. What is A? 1 pt
Answer:

Part D: Equivalent expressions

11. In Equivalent mode, the area model shows 3(x + 2). Which expression is equivalent? 1 pt
  • 3x + 2
  • 3x + 6
  • x + 6
  • 3x + 5
12. In Tiles mode, add three x-tiles. Which expression is equivalent to x + x + x? 1 pt
  • x^3
  • 3x
  • x + 3
  • 3 + x
13. Explain why 3(x + 2) and 3x + 6 are equivalent. Use the area model if it helps. 2 pts