4th Grade Math Review

Front

What is standard form in mathematics?

Back

Standard form is a way of writing numbers using digits. For example, the number six thousand, four hundred forty-seven is written as 6447.

Front

How do you find the total number of items collected when given a series of relationships?

Back

To find the total, you need to understand the relationships between the quantities. For example, if Penn collected 19 pins and Rafael collected 23 more than Penn, then Rafael has 19 + 23 = 42 pins. If Jenny collected 15 times as many as Rafael, then Jenny has 15 × 42 = 630 pins.

Front

What equation can be used to find a person's height if you know the height of a structure and the relationship between them?

Back

Front

What is capacity in terms of measurement?

Back

Capacity refers to the maximum amount that something can contain, often measured in units like liters or gallons.

Front

How do you calculate the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width. For example, if a rectangle has a length of 10 yards and a width of 6 yards, its area is 10 × 6 = 60 square yards.

Front

What is perimeter in geometry?

Back

Perimeter is the total distance around a shape. For a rectangle, it is calculated by adding the lengths of all sides, or using the formula: Perimeter = 2(length + width).

Front

What does it mean for a number to be in 'mixed number' form?

Back

A mixed number is a whole number combined with a fraction. For example, 5 1/2 is a mixed number, where 5 is the whole number and 1/2 is the fraction.

Front

How do you convert a mixed number to an improper fraction?

Back

To convert a mixed number to an improper fraction, multiply the whole number by the denominator, add the numerator, and place that over the original denominator. For example, 5 1/2 becomes (5 × 2 + 1)/2 = 11/2.

Front

What is the relationship between multiplication and division?

Back

Multiplication is the process of adding a number to itself a certain number of times, while division is the process of splitting a number into equal parts. They are inverse operations.

Front

What is the importance of understanding word problems in math?

Back

Understanding word problems helps students apply mathematical concepts to real-life situations, enhancing problem-solving skills and critical thinking.