Unit 7 MSTAR-Style Practice Test — Form A

Integers, Rational Numbers, and the Coordinate Plane · 9 questions · English only, like the real test · No timer — take the time you need.

These are MSTAR-style questions written for this curriculum to rehearse the format. They are not official Maryland assessment items. MSTAR — Maryland's new state test, first given in spring 2027 — uses the same kinds of questions you see here: selected response, select-all, two-part evidence questions, and written responses.

How this works: Answer every question, then press Submit & Grade. Selected-response parts grade instantly with an explanation for each; written responses go to your teacher. Your answers save on this device.

On the real MSTAR: math runs as three 40-minute sessions, in English, on a computer. Here there is no clock — practice the thinking first; the pacing comes with rehearsal.

Written responses: how should the explain-the-error questions be scored?

Instant scoring checks whether your explanation states the value and uses the reasoning the question is about. It matches words and numbers, so a right answer worded differently can score low — your teacher can always re-score it from the answer key.

16.NOS.6Explore Integers and Their Opposites

Select all that apply

Select ALL statements that are true about integers and opposites:

Zero is an integer. The opposite of a positive integer is negative. Opposites are the same distance from zero on a number line. Every integer has an opposite that is a different distance from zero. Zero is its own opposite.

26.NOS.6Represent Rational Numbers and Their Opposites on the Number Line

Explain the error

Ines plotted −2¼ on a number line. She found −2, then counted one quarter to the RIGHT, landing between −2 and −1.

Explain Ines's misconception and describe where −2¼ actually belongs.

✍️ Written response — 2 points.

36.NOS.8Understand Absolute Value of Rational Numbers

Part A

What is the value of |−12|?

0 1/12 12 −12

Part B

Why can an absolute value never be negative?

Negative signs cancel out automatically. The bars change every number to a positive. Absolute value always adds the number to itself. It measures distance from zero, and a distance is never negative.

46.NOS.8Compare and Order Integers and Rational Numbers

Part A

Order these numbers from LEAST to GREATEST: −2, 1.5, −4.5, 0, 3.

−2, −4.5, 0, 1.5, 3 3, 1.5, 0, −2, −4.5 −4.5, −2, 0, 1.5, 3 −4.5, −2, 0, 3, 1.5

Part B

Which statement correctly compares −4.5 and −2?

−4.5 > −2, because 4.5 > 2. −4.5 < −2, because −4.5 lies further left on the number line. They are equal in value. −4.5 > −2, because it is further from zero.

56.NOS.6Represent Rational Numbers on the Coordinate Plane

Select all that apply

Select ALL statements that are true about plotting points:

The origin is the point (0, 0). The x-coordinate is written first in an ordered pair. A point on the y-axis has an x-coordinate of 0. The order of the two coordinates does not matter. Moving down from the origin makes the y-coordinate negative.

66.NOS.9Determine Distance on the Coordinate Plane

Explain the error

Priya found the distance between (−3, 2) and (4, 2). She wrote: 'Just subtract: 4 − 3 = 1, so they are 1 unit apart.'

Explain Priya's misconception and give the correct distance.

✍️ Written response — 2 points.

76.NOS.9Represent Polygons on the Coordinate Plane

Part A

A rectangle has vertices at (1, 1), (7, 1), (7, 5), and (1, 5). What is its perimeter?

10 units 12 units 20 units 24 units

Part B

How can the side lengths be found from the coordinates alone?

Count every grid square inside the rectangle. Each side is horizontal or vertical, so its length is the difference of the coordinates that change. Add all eight coordinate values together. Multiply the x-coordinates by the y-coordinates.

86.NOS.7Ordered Pairs in All Four Quadrants

Select all that apply

Select ALL statements that are true about the four quadrants:

Quadrant I contains points with both coordinates positive. Quadrant III contains points with both coordinates negative. A point on an axis belongs to no quadrant. The quadrants are numbered clockwise starting from the upper right. Quadrant II contains points of the form (−, +).

96.NOS.7Reflect Points Across Axes

Part A

Reflect the point (5, −2) across the x-axis. What are the coordinates of the image?

(−2, 5) (5, 2) (−5, −2) (−5, 2)

Part B

Why does reflecting across the x-axis change only the y-coordinate?

The x-coordinate is always positive after a reflection. The x-axis is horizontal, so the point flips vertically while its horizontal position stays fixed. Only the second coordinate can be negative. Reflections always change exactly one coordinate to zero.