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In the following exercises, solve.

Temperature The high temperature in Peoria one day was 86 degrees Fahrenheit and the low temperature was 28 degrees Fahrenheit. What was the difference between the high and low temperatures?

58 degrees Fahrenheit

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Savings Lynn wants to go on a cruise that costs $2,485. She has $948 in her vacation savings account. How much more does she need to save in order to pay for the cruise?

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Multiply Whole Numbers

Use Multiplication Notation

In the following exercises, translate from math notation to words.

8 × 5

eight times five the product of eight and five

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( 10 ) ( 95 )

ten times ninety-five; the product of ten and ninety-five

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Model Multiplication of Whole Numbers

In the following exercises, model the multiplication.

Multiply Whole Numbers

In the following exercises, fill in the missing values in each chart.

In the following exercises, multiply.

7 · 4 4 · 7

  1. 28
  2. 28
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Translate Word Phrases to Math Notation

In the following exercises, translate and simplify.

the product of 15 and 28

15(28); 420

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ninety-four times thirty-three

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ten times two hundred sixty-four

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Multiply Whole Numbers in Applications

In the following exercises, solve.

Gardening Geniece bought 8 packs of marigolds to plant in her yard. Each pack has 6 flowers. How many marigolds did Geniece buy?

48 marigolds

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Cooking Ratika is making rice for a dinner party. The number of cups of water is twice the number of cups of rice. If Ratika plans to use 4 cups of rice, how many cups of water does she need?

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Multiplex There are twelve theaters at the multiplex and each theater has 150 seats. What is the total number of seats at the multiplex?

1,800 seats

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Roofing Lewis needs to put new shingles on his roof. The roof is a rectangle, 30 feet by 24 feet. What is the area of the roof?

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Divide Whole Numbers

Use Division Notation

Translate from math notation to words.

54 ÷ 9

fifty-four divided by nine; the quotient of fifty-four and nine

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72 8

seventy-two divided by eight; the quotient of seventy-two and eight

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Model Division of Whole Numbers

In the following exercises, model.

Divide Whole Numbers

In the following exercises, divide. Then check by multiplying.

Translate Word Phrases to Math Notation

In the following exercises, translate and simplify.

the quotient of 64 and 16

64 ÷ 16; 4

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the quotient of 572 and 52

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Divide Whole Numbers in Applications

In the following exercises, solve.

Ribbon One spool of ribbon is 27 feet. Lizbeth uses 3 feet of ribbon for each gift basket that she wraps. How many gift baskets can Lizbeth wrap from one spool of ribbon?

9 baskets

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Juice One carton of fruit juice is 128 ounces. How many 4 ounce cups can Shayla fill from one carton of juice?

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Chapter practice test

Determine which of the following numbers are

  1. counting numbers
  2. whole numbers.

0 , 4 , 87

  1. 4, 87
  2. 0, 4, 8
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Find the place value of the given digits in the number 549,362 .

  1. 9
  2. 6
  3. 2
  4. 5
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Write each number as a whole number using digits.

  1. six hundred thirteen
  2. fifty-five thousand two hundred eight
  1. 613
  2. 55,208
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Round 25,849 to the nearest hundred.

Simplify.

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Translate each phrase to math notation and then simplify.

The sum of 16 and 58

16 + 58; 74

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The difference of 32 and 18

32 − 18; 14

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The quotient of 63 and 21

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50 less than 300

300 − 50; 250

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In the following exercises, solve.

LaVelle buys a jumbo bag of 84 candies to make favor bags for her son’s party. If she wants to make 12 bags, how many candies should she put in each bag?

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Last month, Stan’s take-home pay was $3,816 and his expenses were $3,472. How much of his take-home pay did Stan have left after he paid his expenses?

Stan had $344 left.

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Each class at Greenville School has 22 children enrolled. The school has 24 classes. How many children are enrolled at Greenville School?

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Clayton walked 12 blocks to his mother’s house, 6 blocks to the gym, and 9 blocks to the grocery store before walking the last 3 blocks home. What was the total number of blocks that Clayton walked?

Clayton walked 30 blocks.

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Questions & Answers

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Step 1: Find the mean. To find the mean, add up all the scores, then divide them by the number of scores. ... Step 2: Find each score's deviation from the mean. ... Step 3: Square each deviation from the mean. ... Step 4: Find the sum of squares. ... Step 5: Divide the sum of squares by n – 1 or N.
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Bhartdarshan' is an internet-based travel agency wherein customer can see videos of the cities they plant to visit. The number of hits daily is a normally distributed random variable with a mean of 10,000 and a standard deviation of 2,400 a. what is the probability of getting more than 12,000 hits? b. what is the probability of getting fewer than 9,000 hits?
Akshay Reply
Bhartdarshan'is an internet-based travel agency wherein customer can see videos of the cities they plan to visit. The number of hits daily is a normally distributed random variable with a mean of 10,000 and a standard deviation of 2,400. a. What is the probability of getting more than 12,000 hits
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a= 0.20233 b=0.3384
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Source:  OpenStax, Prealgebra. OpenStax CNX. Jul 15, 2016 Download for free at http://legacy.cnx.org/content/col11756/1.9
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