UT 2 Math Review Eng 22-23 4th

Front

What is a fraction?

Back

A fraction represents a part of a whole. It consists of a numerator (top number) and a denominator (bottom number). For example, 1/2 means one part out of two equal parts.

Front

How do you add fractions with the same denominator?

Back

To add fractions with the same denominator, keep the denominator the same and add the numerators. For example, 1/4 + 2/4 = (1+2)/4 = 3/4.

Front

What is the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. Formula: Area = Length × Width.

Front

What is a perimeter?

Back

The perimeter is the total distance around a shape. For a rectangle, it is calculated by adding all sides: Perimeter = 2 × (Length + Width).

Front

What is a decimal?

Back

A decimal is a way to represent fractions using a point. For example, 0.5 is the decimal representation of 1/2.

Front

How do you multiply fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together. For example, 1/2 × 3/4 = (1×3)/(2×4) = 3/8.

Front

What is a mixed number?

Back

A mixed number is a whole number combined with a fraction. For example, 2 1/2 means 2 whole parts and 1/2 of another part.

Front

What is the difference between an acute angle and an obtuse angle?

Back

An acute angle is less than 90 degrees, while an obtuse angle is greater than 90 degrees but less than 180 degrees.

Front

What is a line of symmetry?

Back

A line of symmetry is a line that divides a shape into two identical halves. For example, a butterfly has a line of symmetry down the middle.

Front

What is a polygon?

Back

A polygon is a closed shape with straight sides. Examples include triangles, quadrilaterals, and pentagons.