DA 1 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 found 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 as Perimeter = 2 × (Length + Width).

Front

What is a whole number?

Back

Whole numbers are non-negative numbers without fractions or decimals. They include 0, 1, 2, 3, and so on.

Front

What is a decimal?

Back

A decimal is a way to represent fractions using a point (decimal 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 is a mixed number, which 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 segment?

Back

A line segment is a part of a line that has two endpoints. It is the shortest distance between those two points.