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Understanding Whole Numbers: Rounding, Addition, Subtraction, Multiplication, and Division

This comprehensive guide explores the use of whole numbers in real-life problem-solving. Learn how to round whole numbers accurately, using specified place values like ones, tens, and millions. Master the processes of addition and subtraction, and understand how to check the reasonableness of your answers through estimation. Dive into multiplication and division of whole numbers, and grasp the important terminology such as product, factors, divisor, and quotient. This resource is essential for anyone looking to enhance their mathematical skills.

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Understanding Whole Numbers: Rounding, Addition, Subtraction, Multiplication, and Division

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  1. Whole Numbers How do we use whole numbers to solve real-life problems?

  2. Rounding Whole NumbersHow do you round whole numbers to the specified place value? • Ones, tens, hundreds • Thousands, ten thousands, hundred thousands • Millions, ten millions, hundred millions

  3. Rounding Whole Numbers

  4. Addition and Subtraction of Whole NumbersHow do you add and subtract whole numbers and use estimating to check reasonableness of the answers? • Addend • Sum • Difference • Solve • Reasonableness • Add and Subtract Whole Numbers

  5. Addition and Subtraction of Whole NumbersHow do you add and subtract whole numbers and use estimating to check reasonableness of the answers? • 456 + 1,234 • 6,789 + 3,214 • 678 – 343 • 13,345 – 5,456

  6. Multiplication of Whole Numbers How do you multiply whole numbers and use estimating to check reasonableness of the answers? • Product • Factors • Reasonableness • Multiply and Divide Whole Numbers

  7. Multiplication of Whole Numbers How do you multiply whole numbers and use estimating to check reasonableness of the answers? • 35 x 42 • 136 x 87 • 1,234 x 543

  8. Division of Whole NumbersHow do you divide whole numbers and use estimating to check the reasonableness of the answer? • Divisor • Dividend • Quotient • Reasonableness

  9. Division of Whole NumbersHow do you divide whole numbers and use estimating to check the reasonableness of the answer? • 876 ÷ 13 • 567 ÷ 21 • 1,235 ÷ 34

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