Real Numbers
Classify as rational or irrational:
√9
Answer: Rational
Simplify:
2³
Answer: 8
Write in scientific notation:
4,000
Answer: 4 × 10³
Simplify:
3x + 5x
Answer: 8x
Between which two whole numbers is √5?
Answer: 2 and 3
Simplify:
3² · 3⁴
Answer: 3⁶
Write in standard form:
6 × 10⁻³
Answer: 0.006
Simplify:
4(x + 3)
Answer: 4x + 12
Order from least to greatest:
√2, 1.5, π, 2
Answer:
√2, 1.5, 2, π
Simplify:
(2³)²
Answer: 2⁶
Simplify:
(3 × 10⁴)(2 × 10³)
Answer:
6 × 10⁷
Solve:
2x + 5 = 15
Answer: x = 5