Arithmetic Operations and Expressions

The video tutorial covers module four, lesson six, focusing on using order of operations and expressions. It begins with an introduction to expressions and equations, explaining the difference between them. The tutorial uses tape diagrams to illustrate how to write expressions and solve for unknowns. It also covers converting word problems into expressions and comparing different expressions. Advanced examples are provided to demonstrate solving and simplifying complex expressions. The video concludes with final examples and a summary of key points.

What is the main difference between an expression and an equation?

• An expression has an equal sign, an equation does not.

• Neither have equal signs.

• An equation has an equal sign, an expression does not.

• Both have equal signs.

In a tape diagram, if the whole is divided into four parts and you need three parts, what fraction of the whole are you looking for?

• 1/4

• 3/4

• 1/3

• 3/3

When converting a word problem into an expression, what does the word 'product' indicate?

• Division

• Multiplication

• Subtraction

• Addition

If you have two expressions, 8/3 and 2 and 2/3, how do you know they are equal?

• They are both improper fractions.

• They simplify to the same value.

• They have the same denominator.

• They have the same numerator.

What is the result of subtracting 2 from half of 9?

• 7/2

• 5/2

• 11/2

• 9/2

How do you simplify the expression 17 * 1/3?

• 3 and 1/3

• 17/3

• 6

• 5 and 2/3

What is the first step in solving 1/16 of the sum of 16 and 20?

• Subtract 16 from 20

• Multiply 1/16 by 16

• Divide 36 by 16

• Add 16 and 20

What is the result of 3 times the sum of 3/4 and 2/6?

• 3 and 1/4

• 3 and 1/3

• 3 and 1/6

• 3 and 1/2

What is the product of 2/5 and the product of 5/6 and 42?

• 16

• 10

• 12

• 14

Which expression is equivalent to 4 * 7?

• 4/35

• 4/7

• 28/5

• 5 and 3/5