Day 080Quiz 1
I can apply the skills taught so far, show my reasoning, and check my answers.
Show what you know
Questions 1–1 review Unit 5 (20%). The remaining 4 questions assess the current unit. Show your work, simplify exact answers, label units, and explain when asked.
Quiz
Begin with the review questions, then continue through the current-unit questions.
- Previous unit review
Find the opposite of -2. Show both values on a number line.
- Current unit
Write 5^2 as repeated multiplication and evaluate.
- Current unit
Write 7^4 as repeated multiplication and evaluate.
- Current unit
Evaluate 12 ÷ 2 × 4 + 2^2. Show the intermediate steps.
- Current unit
Evaluate 14 ÷ 2 × 6 + 2^2. Show the intermediate steps.
Answers and reasoning
Reveal the teacher answer key
- 2
-2 and 2 are each 2 units from 0 on opposite sides.
- 5 × 5 = 25
The exponent counts 2 factors of 5; multiply all factors.
- 7 × 7 × 7 × 7 = 2401
The exponent counts 4 factors of 7; multiply all factors.
- 28
Use parentheses and exponents first, then × and ÷ left to right, then + and -. Result: 28.
- 46
Use parentheses and exponents first, then × and ÷ left to right, then + and -. Result: 46.