4.OA.4 Review

Front

What does it mean to skip count?

Back

Skip counting means listing the multiples of a number in a sequence, such as counting by 2s (2, 4, 6, 8...) or by 5s (5, 10, 15, 20...).

Front

What are the first three multiples of 7?

Back

The first three multiples of 7 are 7, 14, and 21.

Front

If Julio uses 20 tiles, how many different rectangular designs can he make with 5-inch square tiles?

Back

With 20 tiles, Julio can make multiple rectangular designs, but the exact number depends on the dimensions of the rectangle.

Front

What is a composite number?

Back

A composite number is a positive integer that has at least one positive divisor other than one or itself, meaning it can be divided evenly by numbers other than 1 and itself.

Front

Identify the composite numbers from the following list: 3, 6, 23, 24.

Back

The composite numbers are 6 and 24.

Front

What is the smallest composite number?

Back

The smallest composite number is 4.

Front

How can you determine if a number is composite?

Back

To determine if a number is composite, check if it has factors other than 1 and itself. If it does, it is composite.

Front

What is the relationship between prime and composite numbers?

Back

Prime numbers have exactly two distinct positive divisors (1 and itself), while composite numbers have more than two positive divisors.

Front

What is the significance of the number 1 in relation to prime and composite numbers?

Back

The number 1 is neither prime nor composite; it has only one positive divisor, which is itself.

Front

What is the formula for finding the area of a rectangle?

Back

The area of a rectangle is found using the formula: Area = length × width.