LESSON 1.1 OPERATIONS ON DECIMALS AND WHOLE NUMBERS

LECTURE NOTES

SUM AND DIFFERENCE OF WHOLE NUMBERS

Strategy for Sum and Difference of Whole Numbers and Decimals

Review on Place Values

You start naming your place values starting from the ones place. To the right of the of the ones place next to the decimal are fractions that is why you add the –ths at the end.

Part 1a: Adding and Subtracting Decimals

Vocabulary: When you add two or more numbers the result is known as the sum. When you subtract two numbers the result is known as the difference.

Strategy for Adding and Subtracting Numbers

1. Align the numbers in columns by place value. You can use the vertical alignment of the decimal point to guide you
2. Start adding or subtracting from right to left.
3. When the sum of two digits is greater than 9, carry one over (regroup)
4. When subtracting a larger number from a smaller number, borrow (regroup)

REVIEW TUTORIAL

 ACCUPLACER ARITHMETIC PREP COURSE LESSONS

1. Lesson 1.1 Operations on Whole and Decimals Numbers Adding and Subtracting
2. Lesson 1.2 Multiplying Decimals and Whole Numbers 
3. Lesson 2.1  Basics of Fractions, Classifying, Reducing, & Converting to Decimals

ACCUPLACER INTERACTIVE PRACTICE TEST
(Wait for the Test to Load!! Click on the right side to Enlarge)

COMPLETE PLACER ARITHMETIC PREP COURSE LINKS

1. Lesson 1.1 Operations on Whole and Decimals Numbers Adding and Subtracting
2. Lesosn 1.2 Multiplying Decimals and Whole Numbers 
3. Lesson 2.1  Basics of Fractions, Classifying, Reducing, & Converting to Decimals

Related Videos

1. Accuplacer Arithmetic Practice Test Part I

2. Accuplacer Arithmetic Practice Test Part II

3. Accuplacer Elementary Algebra Test Part I

4. Accuplacer Elementary Algebra Part II

5. Accuplacer College Level Mathematics Part I

6. Accuplacer College Level Mathematics Part II

7. Accuplacer College Level Mathematics Part III

Arithmetic Section

According to the college board  The Arithmetic algebra "test measures your ability to perform basic arithmetic operations and to solve problems that involve fundamental arithmetic concepts. There are 17 questions on the Arithmetic tests, divided into three types.
• Operations with whole numbers and fractions: Topics included in this category are addition, subtraction, multiplication, division, recognizing equivalent fractions and mixed numbers, and estimating.
• Operations with decimals and percents: Topics include addition, subtraction, multiplication, and division with decimals. Percent problems, recognition of decimals, fraction and percent equivalencies, and problems involving estimation are also given.
• Applications and problem solving: Topics include rate, percent, and measurement problems; simple geometry problems; and distribution of a quantity into its fractional parts." -Source collegeboard.com