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15 9

fifteen minus nine; the difference of fifteen and nine

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42 35

forty-two minus thirty-five; the difference of forty-two and thirty-five

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675 350

hundred seventy-five minus three hundred fifty; the difference of six hundred seventy-five and three hundred fifty

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Model Subtraction of Whole Numbers

In the following exercises, model the subtraction.

Subtract Whole Numbers

In the following exercises, subtract and then check by adding.

Translate Word Phrases to Algebraic Expressions

In the following exercises, translate and simplify.

The difference of 10 and 3

10 − 3; 7

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The difference of 12 and 8

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The difference of 15 and 4

15 − 4; 11

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The difference of 18 and 7

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Subtract 6 from 9

9 − 6; 3

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Subtract 28 from 75

75 − 28; 47

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45 decreased by 20

45 − 20; 25

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92 decreased by 67

92 − 67; 25

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12 less than 16

16 − 12; 4

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38 less than 61

61 − 38; 23

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Mixed Practice

In the following exercises, simplify.

In the following exercises, translate and simplify.

Seventy more than thirty-five

75 + 35; 110

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Sixty more than ninety-three

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13 less than 41

41 − 13; 28

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The difference of 100 and 76

100 − 76; 24

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The difference of 1,000 and 945

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Subtract Whole Numbers in Applications

In the following exercises, solve.

Temperature The high temperature on June 2 in Las Vegas was 80 degrees and the low temperature was 63 degrees. What was the difference between the high and low temperatures?

The difference between the high and low temperature was 17 degrees

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Temperature The high temperature on June 1 in Phoenix was 97 degrees and the low was 73 degrees. What was the difference between the high and low temperatures?

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Class size Olivia’s third grade class has 35 children. Last year, her second grade class had 22 children. What is the difference between the number of children in Olivia’s third grade class and her second grade class?

The difference between the third grade and second grade was 13 children.

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Class size There are 82 students in the school band and 46 in the school orchestra. What is the difference between the number of students in the band and the orchestra?

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Shopping A mountain bike is on sale for $399 . Its regular price is $650 . What is the difference between the regular price and the sale price?

The difference between the regular price and sale price is $251.

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Shopping A mattress set is on sale for $755 . Its regular price is $1,600 . What is the difference between the regular price and the sale price?

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Savings John wants to buy a laptop that costs $840 . He has $685 in his savings account. How much more does he need to save in order to buy the laptop?

John needs to save $155 more.

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Banking Mason had $1,125 in his checking account. He spent $892 . How much money does he have left?

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Everyday math

Road trip Noah was driving from Philadelphia to Cincinnati, a distance of 5 0 2 miles. He drove 115 miles, stopped for gas, and then drove another 23 0 miles before lunch. How many more miles did he have to travel?

157 miles

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Test Scores Sara needs 35 0 points to pass her course. She scored 75 , 50 , 70 , and 80 on her first four tests. How many more points does Sara need to pass the course?

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Writing exercises

Explain how subtraction and addition are related.

Answers may vary.

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How does knowing addition facts help you to subtract numbers?

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Self check

After completing the exercises, use this checklist to evaluate your mastery of the objectives of this section.

.

What does this checklist tell you about your mastery of this section? What steps will you take to improve?

Questions & Answers

Money market is a branch or segment of financial market where short-term debt instruments are traded upon. The instruments in this market includes Treasury bills, Bonds, Commercial Papers, Call money among other.
murana Reply
good
Kayode
what is money market
umar Reply
Examine the distinction between theory of comparative cost Advantage and theory of factor proportion
Fatima Reply
What is inflation
Bright Reply
a general and ongoing rise in the level of prices in an economy
AI-Robot
What are the factors that affect demand for a commodity
Florence Reply
price
Kenu
differentiate between demand and supply giving examples
Lambiv Reply
differentiated between demand and supply using examples
Lambiv
what is labour ?
Lambiv
how will I do?
Venny Reply
how is the graph works?I don't fully understand
Rezat Reply
information
Eliyee
devaluation
Eliyee
t
WARKISA
hi guys good evening to all
Lambiv
multiple choice question
Aster Reply
appreciation
Eliyee
explain perfect market
Lindiwe Reply
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
Ezea
What is ceteris paribus?
Shukri Reply
other things being equal
AI-Robot
When MP₁ becomes negative, TP start to decline. Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Kelo
yes,thank you
Shukri
Can I ask you other question?
Shukri
what is monopoly mean?
Habtamu Reply
What is different between quantity demand and demand?
Shukri Reply
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
ok
Shukri
how do you save a country economic situation when it's falling apart
Lilia Reply
what is the difference between economic growth and development
Fiker Reply
Economic growth as an increase in the production and consumption of goods and services within an economy.but Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
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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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