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

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CCSS.6.EE.B.7

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

• 5

• 9

• 7

• 4

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CCSS.6.EE.B.7

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

• Less than

• Greater than

• Equals

• Addition

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CCSS.6.EE.A.2A

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

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CCSS.HSA-SSE.A.1A

Which term often means to add in mathematical expressions?

• Deduct

• Sum

• Decrease

• Less

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CCSS.HSA.APR.A.1

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

• Division

• Multiplication

• Subtraction

• Addition

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CCSS.HSA.APR.A.1

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

• Addition

• Multiplication

• Division

• Subtraction

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CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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

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CCSS.HSA.CED.A.3

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

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CCSS.HSA.CED.A.3

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.HSA.CED.A.3