Place Value & Powers of 10 — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. 10³ = 1,000.
The correct answer is '1,000'. 10³ = 1,000.
2. 10⁵ = 100,000.
The correct answer is '100,000'. 10⁵ = 100,000.
3. 10¹ = 10.
The correct answer is '10'. 10¹ = 10.
4. Write 10,000 using an exponent: 10 to the power of 4.
The correct answer is '4'. Write 10,000 using an exponent: 10 to the power of 4.
5. 8 × 10⁴ = 80,000.
The correct answer is '80,000'. 8 × 10⁴ = 80,000.
6. 3.5 × 10² = 350.
The correct answer is '350'. 3.5 × 10² = 350.
7. Write 1,000,000 using an exponent: 10 to the power of 6.
The correct answer is '6'. Write 1,000,000 using an exponent: 10 to the power of 6.
8. Compare: 4 × 10³ > 400 (write >, <, or =).
The correct answer is '>'. Compare: 4 × 10³ > 400 (write >, <, or =).
9. Compare: 7 × 10² < 7 × 10⁴ (write >, <, or =).
The correct answer is '<'. Compare: 7 × 10² < 7 × 10⁴ (write >, <, or =).
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
10²
→ 100
1,000,000
5 × 10³
→ 5,000
5,000
10⁶
→ 1,000,000
100
2 × 10⁴
→ 20,000
20,000
Match each item with its correct partner. The correct matches are: 10² → 100; 5 × 10³ → 5,000; 10⁶ → 1,000,000; 2 × 10⁴ → 20,000.