Basic Arithmetic and Number Concepts

The video tutorial explains how to simplify expressions involving both division and multiplication by following the order of operations. It demonstrates converting division into multiplication using reciprocals, simplifying fractions through prime factorization, and calculating the product. Finally, it shows how to convert improper fractions into mixed numbers, emphasizing the importance of reading directions for the required form.

What is the first step in simplifying an expression with both division and multiplication?

• Subtract all numbers first

• Follow the order of operations

• Ignore division

• Add all numbers first

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

When dealing with multiplication and division, which direction should you work?

• Bottom to top

• Left to right

• Right to left

• Top to bottom

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

How can division be rewritten to simplify calculations?

• As addition

• As a square root

• As multiplication using the reciprocal

• As subtraction

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

What is the reciprocal of 1/12?

• 12

• 1/12

• 12/1

• 1/1

Why is it helpful to write numbers in prime factored form?

• To make the numbers larger

• To identify all common factors

• To make the numbers smaller

• To avoid using fractions

Tags

CCSS.4.OA.B.4

What is the prime factorization of 4?

• 2 x 3

• 1 x 4

• 2 x 2

• 4 x 1

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What happens when you multiply a negative number by a positive number?

• The result is undefined

• The result is positive

• The result is negative

• The result is zero

Tags

CCSS.3.OA.C.7

What is the product of 3 times 3?

• 12

• 9

• 3

• 6

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

• Subtract the denominator from the numerator

• Add the numerator and the denominator

• Divide the numerator by the denominator

• Multiply the numerator by the denominator

What is the mixed number form of 9/2?

• 2 and 1/2

• 3 and 1/2

• 5 and 1/2

• 4 and 1/2