Number Sense Number Sense Test ReviewTest Review

55thth Grade GradeMrs. KellyMrs. Kelly

Define the following Define the following vocabulary terms.vocabulary terms.

• Standard form

• Exponent

• Exponential notation

AnswersAnswers• Standard form: A number written

with one digit for each place value.

• Exponent: tells us how many times to use the base number as a factor.

• Exponential notation: a way of writing a number using exponents.

Use complete sentences Use complete sentences and examples in your and examples in your

answer.answer.

• Explain the difference between expanded form and expanded notation.

AnswerAnswer Expanded form is a way to write

numbers that shows the value of each digit. 56,319 = 50,000 + 6,000 + 300 + 10 + 9. Expanded notation is a way to write numbers that shows each digit times the corresponding place value. 56,319 = (5·10,000) + (6·1,000) + (3·100)+ (1·10) + (9·1)

Compute. (Simplify)Compute. (Simplify)• 82

• 40

• 63

• 35

AnswersAnswers

• 64

• 1

• 216

• 243

Write the following numbers Write the following numbers in standard form.in standard form.

• Four billion eight hundred three thousand five hundred thirteen

• 200,000,000,000 + 80,000,000 + 400,000 + 900 + 70 + 6

• (4 · 102) + (6 · 109) + (3 · 106) + (1 · 103) + (8 · 100) + (7 · 108)

AnswersAnswers• 4,000,803,513

• 200,080,400,976

• 6,703,001,408

Write the following Write the following numerals in word form.numerals in word form.

• 389,000,751,462

AnswerAnswer

• Three hundred eighty-nine billion seven hundred fifty-one thousand four hundred sixty-two

Answer the following questions Answer the following questions about the number:about the number:

8,036,175,429

What period is the 1 in?What is the value of the 8?What place value is the 0 in?What period is the 4 in?What is the value of the 3?What place value is the 6 in ?

AnswersAnswers8,036,175,429

thousands8,000,000,000hundred millionsones30,000,000 millions

Respond to the following Respond to the following questions.questions.

• How many 10,000’s are in 100,000,000?

• How many 1,000,000’s are in 10,000,000,000?

• How many 1,000’s are in 10,000,000?

AnswersAnswers

THEY ARE ALL 10,000!!!! What a coincidence!

Answer the following Answer the following question.question.

Suppose there are one hundred billion pennies in pile A and ten million pennies in pile B, how many times greater is pile A than pile B?

AnswerAnswer

10,000 times greater! Surprise, surprise!

Compute. (Simplify)Compute. (Simplify)• 108

• 103

• 100

• 104

AnswersAnswers• 108 = 100,000,000

• 103 = 1,000

• 100 = 1

• 104 = 10,000

Write the following numbers Write the following numbers using exponents.using exponents.

• 10,000,000

• 100,000,000,000,000

• 10

• 100,000

AnswersAnswers• 107

• 1014

• 101

• 105

Congratulations!Congratulations!

This is the end of part I of the review for the Number Sense Test. We will now review the rest of the skills and concepts for part II of the Number Sense Test. Keep studying and practicing!!!!!! I am so proud of you, you are doing great!