5th Grade Math Concepts Review

What makes a number prime?

• It has more than two factors.

• It is divisible by 2.

• It has exactly two factors: 1 and the number itself.

• It is an odd number.

Why is the number 2 considered prime?

• Because it has more than two factors.

• Because it is an even number.

• Because it is divisible by 1 and 2 only.

• Because it is the smallest number.

What does the mnemonic 'Please Excuse My Dear Aunt Sally' represent?

• The sequence of prime numbers.

• A way to remember the colors of the rainbow.

• The order of operations in math.

• A method for solving algebraic equations.

In the order of operations, which comes first?

• Multiplication

• Addition

• Exponents

• Parentheses

What is the result of 3 boxes of 8 bulbs each, minus 2 damaged bulbs, plus 2 bulbs?

• 15 bulbs

• 24 bulbs

• 26 bulbs

• 22 bulbs

What is the difference between an expression and an equation?

• An expression includes an equal sign; an equation does not.

• An equation includes an equal sign; an expression does not.

• An expression can only contain numbers; an equation can contain variables.

• There is no difference.

What is the correct result of the expression 8 * (3.8 + 13.2) - 6?

• 130

• 37.6

• 29

• 88

How can ignoring parentheses in an expression affect the result?

• It does not affect the result.

• It can lead to a higher result.

• It can lead to a lower result.

• It can lead to an incorrect result.

What happens if you perform operations out of order in an expression?

• You get a result that is too high.

• You get the same result.

• You get an incorrect result.

• You get a result that is too low.

Why is it important to double-check your work when solving math problems?

• To verify you didn't make any simple mistakes.

• To make sure you didn't forget any steps.

• All of the above.

• To ensure you followed the order of operations correctly.