Writing 2-Step Equations from Word Problems

The video tutorial covers writing equations, focusing on understanding the correct order of terms, especially with 'less than'. It provides a list of mathematical terms for operations like addition, subtraction, multiplication, and division. The tutorial includes examples of writing equations from word problems, such as calculating costs and charges, to reinforce the concepts taught.

What is the correct way to express '2 less than 10' in an equation?

• 10 + 2

• 2 + 10

• 2 - 10

• 10 - 2

Tags

CCSS.2.OA.A.1

If 'a number decreased by 2 equals 7', what is the number?

• 5

• 9

• 7

• 4

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

What does 'is' typically mean in a mathematical expression?

• Less than

• Greater than

• Equals

• Addition

Tags

CCSS.2.NBT.A.4

How would you express 'a number two less than seven' in an equation?

• 7 - 2 = x

• x - 2 = 7

• 7 - x = 2

• x = 7 - 2

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

Which term often means to add in mathematical expressions?

• Deduct

• Sum

• Decrease

• Less

Tags

CCSS.2.NBT.B.5

CCSS.2.OA.A.1

What does the term 'product' typically indicate in mathematical operations?

• Division

• Multiplication

• Subtraction

• Addition

Tags

CCSS.3.OA.A.1

CCSS.3.OA.A.3

What does the term 'quotient' refer to in mathematical operations?

• Addition

• Multiplication

• Division

• Subtraction

Tags

CCSS.3.OA.A.2

CCSS.3.OA.A.3

In the context of a service charge, how would you write an equation for a $40 call-out fee plus $55 per hour for 3 hours?

• 40 + 55 * 3

• 40 * 55 + 3

• 40 + 3 / 55

• 3 + 55 * 40

Tags

CCSS.3.OA.A.3

CCSS.3.OA.D.8

If 'the sum of 15 and six times a number is 81', what is the equation?

• 81 = 15 + x / 6

• x * 6 + 15 = 81

• 6 + 15 * x = 81

• 15 + 6 * x = 81

Tags

CCSS.3.OA.A.3

CCSS.3.OA.D.8

If an electrician charges $40 to show up and $55 per hour, how would you write the equation for a total charge of $190 after 3 hours?

• 3 * (40 + 55) = 190

• 55 * 3 + 40 = 190

• 190 = 40 + 55 / 3

• 40 + 55 * 3 = 190

Tags

CCSS.3.OA.A.3

CCSS.3.OA.D.8