Question

1. what is the range of 4.5 x 8.3? *

1 point
4 x 8 and 5 x 9
40
4 x 5 and 8 x 9
32

1. what is the place value of the 8 in 4.87 *

1 point
ones
tens
tenths
hundredths

Explanation:

Question 7

Step1: Analyze the factors

For \(4.5\times8.3\), we find the lower and upper bounds of each factor. \(4.5\) is between \(4\) and \(5\), and \(8.3\) is between \(8\) and \(9\).

Step2: Determine the range

To find the range of the product, we take the minimum product of the lower bounds (\(4\times8\)) and the maximum product of the upper bounds (\(5\times9\)). So the range of \(4.5\times8.3\) is between \(4\times8\) and \(5\times9\).

Step1: Recall place value

In a decimal number, the first digit after the decimal point is the tenths place, the second is the hundredths place, etc.

Step2: Identify the place of 8

In \(4.87\), the digit \(8\) is in the first position after the decimal point. So its place value is tenths.

Answer:

A. \(4\times8\) and \(5\times9\)

Question 8