Whole Numbers How To Dissect And Solve Word Problems

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(No Transcript)
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Whole Numbers How to Dissect and Solve Word
Problems
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• Learning Unit Objectives
• LU1.1 Reading, Writing, and Rounding Whole
  Numbers
• Use place values to read and write numeric and
  verbal whole numbers
• Round whole numbers to the indicated position
• Use blueprint aid for dissecting and solving a
  word problem

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Whole Numbers How to Dissect and Solve Word
Problems
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• Learning Unit Objectives
• LU1.2 Adding and Subtracting Whole Numbers
• Add whole numbers check and estimate addition
  computations
• Subtract whole numbers check and estimate
  subtraction computations

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Whole Numbers How to Dissect and Solve Word
Problems
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• Learning Unit Objectives
• LU1.3 Multiplying and Dividing Whole Numbers
• Multiply whole numbers check and estimate
  multiplication computations
• Divide whole numbers check and estimate division
  computations

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Whole-number place-value chart

• Figure 1.1

3,526,439,017,821
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Rounding Whole Numbers
Step 1. Identify the place value of the digit
you want to round
Step 3. Drop all digits to the right of the
identified digit

• 6764

• 6864

Step 2. Identify the digit to the right. If 5 or
more, increase by 1, If less than 5 do not change
6800
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How to Dissect and Solve a Word Problem

• Organization and persistence

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Adding Whole Numbers

• 3 Steps
• 1. Align the numbers according to their place
  values
• 2. Add the units column. If the sum is more
  than 9, write the units digit and carry the tens
  digit.
• 3. Moving to the left, repeat Step 2 until all
  place values are added.

Example 2 1 1 1,362 5,913 8,924
6,594 22,793
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Subtracting Whole Numbers

• 3 Steps
• 1. Align the minuend and subtrahend
• 2. Begin the subtraction with the units digits.
  
• 3. Moving to the left, repeat Step 2

Example 6 14 7 10 74,580 -56,114
18,466
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Multiplication of Whole Numbers

• 4 Steps
• 1. Align the multiplicand and multiplier at the
  right.
• 2. Multiplying the right digit of the multiplier
  with the right digit of the multiplicand.
• 3. Your partial product right digit or first
  digit is placed directly below the digit in the
  multiplier that you used to multiply.
• 4. Add the partial products to get the final
  product.

• Example
• 418
• x52
• 836
• 20 90
• 21,736

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Division of Whole Numbers

• Example
• 18 Quotient
• Divisor 15 270 Dividend
• 15
• 120
• 120
• 0

• How many times one number (Divisor) is contained
  in another number (Dividend). The result is the
  Quotient.

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Proper use of the calculator