Questions and Answers
What is the result of 871 - 462?
What is the value of the 5 in the number 560,149?
What is the standard form of twenty-three million, two hundred eighteen thousand, six?
Fill in the box: 3 x 10 < 5 x ____
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What is the result of 4235 + 2729?
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Study Notes
Arithmetic Operations
- Addition examples demonstrate the process of summing multiple numbers, with the final results being prominent.
- Key addition results include:
- 189 + 321 + 508 + 657 = 1675
- 4235 + 2729 = 6964
- 26 + 75 + 54 + 83 = 238
- Subtraction examples highlight the difference between two numbers.
- Important subtraction results include:
- 871 - 462 = 409
- 7470 - 5479 = 1991
Place Value of 5
- Understanding the value of the digit 5 in various numbers is crucial for grasping place value concepts.
- Specific examples include:
- In 10,852, the 5 represents 50.
- In 984,065,723, the 5 represents 5,000.
- In 560,149, the 5 represents 500,000.
Standard Form Conversion
- Converting written numbers into standard numerical form is a key skill.
- Examples of numbers written in standard form:
- "twenty-three million, two hundred eighteen thousand, six" converts to 23,218,006.
- "eight million, nine" converts to 8,000,009.
- The expression "100,000,000 + 5,000,000 + 300,000 + 50,000" simplifies to 105,350,000.
- "2,000 + 700 + 6" converts to 2,706.
Inequality and Equivalency
- Comparing numbers using symbols like > (greater than) and < (less than) is emphasized.
- The examples illustrate the use of equations involving addition and multiplication to establish relationships:
- 26 - 10 is a comparison point.
- For example, both 18 - 9 = 4 + 4 confirms equivalence.
- In multiplication, 4 x 5 = 2 x 10 shows equality.
- It is indicated that 3 x 10 < 5 x 5, establishing a clear less than relationship.
Studying That Suits You
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Description
Test your skills in basic arithmetic with this quiz designed for 4th-grade students. You'll solve addition and subtraction problems while practicing your number-writing abilities. Perfect for reinforcing math concepts before moving on to more advanced topics.
