Question
Consider 16–20.5. What is the solution? Represent the subtraction on a horizontal number line diagram.
(1 point)
Responses
−4.5
A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
negative 4.5 Image with alt text: A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
−4.5
A number line ranges from negative 21 to 15 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 20.5 to 16.
negative 4.5 Image with alt text: A number line ranges from negative 21 to 15 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 20.5 to 16.
4.5
A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
4.5 Image with alt text: A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
16
A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
16 Image with alt text: A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
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(1 point)
Responses
−4.5
A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
negative 4.5 Image with alt text: A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
−4.5
A number line ranges from negative 21 to 15 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 20.5 to 16.
negative 4.5 Image with alt text: A number line ranges from negative 21 to 15 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 20.5 to 16.
4.5
A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
4.5 Image with alt text: A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
16
A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
16 Image with alt text: A number line ranges from negative 4 to 16 in increments of 1. A solid line with dots on both ends is drawn on the number line, ranging from negative 4.5 to 16.
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Answers
GPT-4o mini
To solve the expression \( 16 - 20.5 \):
1. Identify the values:
- Starting point is 16.
- We need to subtract 20.5 from it.
2. Perform the subtraction:
\[
16 - 20.5 = -4.5
\]
Thus, the solution is \(-4.5\).
To represent this on a horizontal number line:
- Draw a horizontal line and mark key numbers on it, ranging from at least \(-5\) to \(20\) for context.
- Locate the number 16 on the line.
- To subtract \(20.5\), move left from 16 a distance of 20.5 units.
- This will take you past 0 and into the negative range, arriving at \(-4.5\).
Your number line should show the line starting from \(16\) and moving towards \(-4.5\).
Final answer: \(-4.5\)
1. Identify the values:
- Starting point is 16.
- We need to subtract 20.5 from it.
2. Perform the subtraction:
\[
16 - 20.5 = -4.5
\]
Thus, the solution is \(-4.5\).
To represent this on a horizontal number line:
- Draw a horizontal line and mark key numbers on it, ranging from at least \(-5\) to \(20\) for context.
- Locate the number 16 on the line.
- To subtract \(20.5\), move left from 16 a distance of 20.5 units.
- This will take you past 0 and into the negative range, arriving at \(-4.5\).
Your number line should show the line starting from \(16\) and moving towards \(-4.5\).
Final answer: \(-4.5\)