4th Grade Bridges Unit 2 Review

Front

What is a composite number?

Back

A composite number is a whole number greater than 1 that has more than two distinct positive divisors, meaning it can be divided evenly by numbers other than 1 and itself. Example: 14 is composite because it can be divided by 1, 2, 7, and 14.

Front

What is the product of 40 and 7?

Back

280

Front

Is 18 x 14 = (10 x 14) + (8 x 14) true or false?

Back

True. This is an example of the distributive property of multiplication.

Front

If Skylah has 150 marbles and JC has m marbles, which equation represents that Skylah has three times as many marbles as JC?

Back

3 x m = 150

Front

What is 23 ÷ 5?

Back

4 R3 (4 with a remainder of 3).

Front

What is the definition of multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 x 3 means adding 4 three times: 4 + 4 + 4 = 12.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac. It allows you to multiply a number by a sum by distributing the multiplication over each addend.

Front

What is a remainder in division?

Back

A remainder is the amount left over after division when one number does not divide evenly into another. For example, in 23 ÷ 5, the quotient is 4 and the remainder is 3.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents an unknown number in an equation or expression.