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The document appears to be a collection of math exercises and quizzes for elementary school students, likely for a mid-term or final exam. Here’s a creative and clear version of the content:

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Math Exercises for Elementary Students

Multiple Choice Questions

1. Number Representation:

   • What is the number that consists of 5 hundreds and 4 units?
     • A. 54, B. 540, C. 504, D. 45
   • Answer: B. 540

2. Division:

   • If the dividend is 18 and the divisor is 2, what is the quotient?
     • A. 6, B. 7, C. 8, D. 9
   • Answer: A. 6

3. Geometry:

   • How many quadrilaterals are in the given figure?
     • A. 5, B. 4, C. 3, D. 6
   • Answer: Not specified in the provided text.

4. Addition:

   • What is the sum of 459 and the number immediately after the smallest three-digit number?
     • A. 559, B. 358, C. 550, D. 560
   • Answer: A. 559

5. Weight Comparison:

   • If a pig weighs 30 kg and each rabbit weighs the same, how much does each rabbit weigh?
     • A. 5 kg, B. 4 kg, C. 3 kg, D. 2 kg
   • Answer: Not specified in the provided text.

Long Answer Questions

1. Basic Arithmetic Operations:

   • Calculate the following:
     • $54 + 18$
     • $61 - 37$
     • $373 - 156$
     • $128 + 265$

2. Number Decomposition:

   • Express the numbers 782 and 236 as sums of hundreds, tens, and units.

3. Fill in the Blanks:

   • The number consisting of 3 hundreds and 7 units is written as _______.
   • The number immediately before 250 is _______.
   • 20 dm equals _______ cm.
   • 1,000 cm equals _______ m.

4. Multiplication and Division:

   • Calculate:
     • $5 \times 2$
     • $2 \times 3$

5. Sorting Numbers:

   • Arrange the numbers 657, 706, 382, and 543 in descending order.

6. Real-World Problem:

   • If Nam’s group of 10 friends want to ride bicycles two at a time, how many bicycles will they need to rent?

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Additional Exercises

1. Multiplication and Division:

   • Calculate:
     • $2 \times 4$
     • $5 \times x = 40$
     • $30 \div 5$
     • $x \div 5 = 4$

2. Arithmetic Operations:

   • Calculate:
     • $262 + 418 - 350$
     • $565 \, \text{m} - 127 \, \text{m} + 81 \, \text{m}$

3. Equations:

   • Solve for $x$ in:
     • $2x = 14$
     • $x \div 5 = 7$
     • $5x = 40$
     • $x \div 2 = 8$

4. Inequalities:

   • Compare:
     • $20 \div 2$ and $5 \times 2$
     • $563 + 209$ and $875 - 163$

5. Distance Calculation:

   • Determine the total distance Kiến needs to travel to get home.

6. Harvest Comparison:

   • If An’s family harvested 455 kg of potatoes this year, which is 92 kg more than last year, how much did they harvest last year?

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More Exercises

1. Number Representation:

   • Express the number consisting of 2 hundreds and 4 units in words.

2. Factors:

   • What are the factors of 15?
     • A. 2 and 5, B. 3 and 5, C. 2 and 7, D. 2 and 9

3. Sorting Numbers:

   • Arrange the numbers 650, 374, 529, and 431 in ascending order.

4. Next Number:

   • What is the number immediately after the largest three-digit number?
     • A. 997, B. 998, C. 999, D. 1000

5. Day of the Week:

   • If today is Wednesday, April 15, what day of the week is April 24?

6. Fencing:

   • If An’s father sets up fence posts 50 dm apart, how much fencing does he need?

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Final Set of Exercises

1. Basic Arithmetic Operations:

   • Calculate:
     • $665 + 37$
     • $347 - 25$
     • $676 - 349$
     • $285 + 450$

2. Arithmetic Operations:

   • Calculate:
     • $167 + 218 - 190$
     • $873 - 535 + 271$

3. Inequalities:

   • Compare:
     • $5 \times 4$ and $2 \times 10$
     • $635 + 109$ and $930 - 118$

4. Division and Multiplication:

   • Express the following as equations:
     • Total number of apples = _______ apples
     • Number of flowers per jar = _______ flowers

5. Sorting Numbers:

   • Arrange the numbers 357, 206, 182, and 543 in ascending order.

6. Distance Calculation:

   • If Nghệ An is 350 km from Hà Nội and 200 km farther than Thanh Hóa, how far is Thanh Hóa from Hà Nội?

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Last Set of Exercises

1. Number Representation:

   • The number consisting of 9 hundreds and 5 units is written as _______.

2. Previous Number:

   • What is the number immediately before 350?
     • A. 348, B. 350, C. 358, D. 360

3. Sum of Numbers:

   • What two numbers sum to the largest three-digit round tens number?
     • A. 563 and 327, B. 810 and 90, C. 240 and 740, D. 152 and 838

4. Smallest Result:

   • Which of the following calculations yields the smallest result?
     • A. $542 - 318$, B. $638 - 455$, C. $454 + 27$, D. $547 + 80$

5. Volume of Water:

   • If each bottle of fish sauce contains 2 liters, how many liters does a purchase of 5 bottles contain?
     • A. 8 liters, B. 9 liters, C. 10 liters, D. 12 liters

6. Fabric Length:

   • If a 12-meter piece of fabric is cut into two equal pieces, how long is each piece?
     • A. 6 meters, B. 7 meters, C. 8 meters, D. 5 meters

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Final Exercises

1. Basic Arithmetic Operations:

   • Calculate:
     • $625 + 155$
     • $946 - 581$
     • $831 - 416$
     • $305 + 285$

2. Arithmetic Operations:

   • Calculate:
     • $284 + 302 - 425$
     • $465 - 25 + 336$

3. Geometry:

   • Count the number of quadrilaterals in the figure.

4. Inequalities:

   • Compare:
     • $72 + 28$ and $99 - 16$
     • $835 - 207$ and $628$

5. Student Count:

   • If there are 145 male students and 39 more male students than female students, how many students are there in total?

6. Donation:

   • If each student donates one notebook, how many notebooks are donated in total?

Citations:
[1] https://ppl-ai-file-upload.s3.amazonaws.com/web/direct-files/29112941/aa4279c5-e5ed-4d3a-92cf-b4b0a199cd0c/4-de-on-tap-cuoi-ki-2-toan-2.pdf
[2] https://ppl-ai-file-upload.s3.amazonaws.com/web/direct-files/29112941/aa4279c5-e5ed-4d3a-92cf-b4b0a199cd0c/4-de-on-tap-cuoi-ki-2-toan-2.pdf

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Answer from Perplexity: pplx.ai/share