MCA: Number Sense 1

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Front

What are the four quadrants of a coordinate grid?

Back

The four quadrants are: Quadrant I (x > 0, y > 0), Quadrant II (x < 0, y > 0), Quadrant III (x < 0, y < 0), Quadrant IV (x > 0, y < 0).

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction or ratio of two integers, where the denominator is not zero.

Front

How can you identify a rational number?

Back

A rational number can be identified if it can be written as a fraction a/b, where a and b are integers and b ≠ 0.

Front

What is the coordinate of a point in Quadrant II?

Back

A point in Quadrant II has a negative x-coordinate and a positive y-coordinate.

Front

What does the point (-2, 3) represent on a coordinate grid?

Back

The point (-2, 3) represents a location where x = -2 and y = 3, which is in Quadrant II.

Front

What is the value of pi?

Back

Pi (π) is an irrational number approximately equal to 3.14, which cannot be expressed as a fraction.

Front

What is the significance of the number 0 in rational numbers?

Back

The number 0 is considered a rational number because it can be expressed as 0/1.

Front

What does it mean for a number to be less than 1?

Back

A number is less than 1 if it is smaller than 1 on the number line, including negative numbers and fractions.

Front

What is the definition of a coordinate grid?

Back

A coordinate grid is a two-dimensional plane formed by the intersection of a horizontal line (x-axis) and a vertical line (y-axis).