Multiplying and Dividing Decimals

Question

What is the product or quotient for each expression?
4.15 × 10 =
5.831 × 100 = 583.1
138.24 × 1,000 =
4.15 ÷ 10 = 0.415
5.831 ÷ 100 =
1,382.4 ÷ 1,000 =

Answer 1

Let's solve each expression one by one.

1. 4.15 × 10: \[ 4.15 \times 10 = 41.5 \]

2. 5.831 × 100: \[ 5.831 \times 100 = 583.1 \quad \text{(as given)} \]

3. 138.24 × 1,000: \[ 138.24 \times 1,000 = 138,240 \]

4. 4.15 ÷ 10: \[ 4.15 \div 10 = 0.415 \]

5. 5.831 ÷ 100: \[ 5.831 \div 100 = 0.05831 \]

6. 1,382.4 ÷ 1,000: \[ 1,382.4 \div 1,000 = 1.3824 \]

Here are the results summarized:

• \( 4.15 × 10 = 41.5 \)
• \( 5.831 × 100 = 583.1 \)
• \( 138.24 × 1,000 = 138,240 \)
• \( 4.15 ÷ 10 = 0.415 \)
• \( 5.831 ÷ 100 = 0.05831 \)
• \( 1,382.4 ÷ 1,000 = 1.3824 \)