Review Of Pre Algebra

Front

What is the first step in solving the expression: -12 ÷ 6 (-3) + 8?

Back

Division is the first step.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

Identify the error in the calculation: 5 - 3 + 2 = 5 - 5 = 0.

Back

Addition was done first; subtraction should have been done first.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is the prime factorization of 84?

Back

2 x 2 x 3 x 7.

Front

Which number is a factor of 23?

Back

1 is a factor of 23.

Tags

CCSS.4.OA.B.4

Front

What does GCF stand for?

Back

GCF stands for greatest common factor.

Front

What is the definition of a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Tags

CCSS.4.OA.B.4

Front

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

Back

Area = length x width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the definition of a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Tags

CCSS.4.OA.B.4

Front

What is the difference between a prime number and a composite number?

Back

A prime number has exactly two distinct positive divisors, while a composite number has more than two.

Tags

CCSS.4.OA.B.4

Front

What is the least common multiple (LCM) of 4 and 5?

Back

The LCM of 4 and 5 is 20.