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UNIT 12 DECIMALS NUMERATION

UNIT 12 DECIMALS NUMERATION. 4 TH GRADE GIFTED. VOCABULARY ones tens one hundred number line The number 438,572 has a 7 in the __________ place. Ten tens are equal to ______. A _______ can be used to show numbers in order using a scale. Comparing Numbers > < =

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UNIT 12 DECIMALS NUMERATION

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  1. UNIT 12DECIMALSNUMERATION 4TH GRADE GIFTED

  2. VOCABULARY ones tens one hundred number line • The number 438,572 has a 7 in the __________ place. • Ten tens are equal to ______. • A _______ can be used to show numbers in order using a scale.

  3. Comparing Numbers > < = 1,909 1,999 43,627 43,167 629,348 629,348 455,311 455,331 101,101 101,011 95,559 95,555

  4. Order these numbers from greatest to least. • 3,687 3,867 3,678 3,768 • 41,101 41,011 41,110 41,001 • 4,593 4,395 4,595 4,359 • 678,912 678,921 687,999 678,291

  5. Order from least to greatest. 15,420 154,200 1,542 543,897 54,380 534,978

  6. Use a decimal model to show 1.6 pounds.

  7. A decimal model can also show 1.6 hundredths.

  8. Write the decimal: 1.64 Standard form: Expanded form: Word form:

  9. Write the expanded form and word form. 3.91 6.8 1.09 2.3

  10. Write the decimal for each. What would the fraction be?

  11. Write the decimal shown. Write the fraction.

  12. Write the number in word and give the value of each red digit. 2.47 ________________________ 3.19 ________________________ 23.79 ________________________ 0.78 ________________________ 1.8 ________________________ 14.1 ________________________ 9.05 ________________________

  13. Write a number that has a 4 in the tens place and a 5 in the hundredths place. _________________________________ The capybara can grow to be 1.3 meters long. Write 1.3 in expanded form and in word form. ___________________ ___________________

  14. The Green Darner is one of the largest dragonflies on Earth. It weighs about four hundredths of an ounce. Write the weight in standard form.

  15. Use the decimal model to explain why 0.08 is less than 0.1

  16. Write the word form and tell the value of each red digit. 2.300 __________________________ 9.027 __________________________ 1.982 __________________________ 6.17 __________________________ 4.983 __________________________ 8.46 __________________________

  17. Write each number in standard form. 6 + 0.6 + 0.03 + 0.007 3 + 0.3 + 0.009 9 = 0.2 + 0.04 + 0.008

  18. Write two decimals that are equivalent to the decimal below. 2.200 _________________________ 8.1 _________________________ 9.50 _________________________

  19. Bella finished a race in 2.6 hours, and Sophia finished the same race in 2.600 hours. Which runner finished the race first?

  20. Alex is buying juice at the market. He has $9, and each bottle of juice costs $2. Does he have enough money to buy 5 bottles of juice? Explain.

  21. Nikki made 19 pancakes for breakfast. She took 7 and gave an equal number to her dad and mom. How many pancakes did each of her parents get?

  22. The Borneo stick insect has a total length, including its legs, of 21.5 inches. Name two decimals that are equivalent to 21.5

  23. Worker leafcutter ants can measure 0.5 inch. Write three other ways to write 0.5 inch.

  24. Decimal to Whole Number Connection

  25. Write the place value for the red digit. 34.67 _____________________ 856.472 _____________________ 486.359 _____________________ 6,095.375 _____________________

  26. Write the number that is ten times as many. 1. _____________________ 0.01 _____________________ 100. _____________________ 0.001_____________________

  27. A telephone worker used 340.75 feet of cable. What is the place value of the 5 in 340.75 ? 3 4 0 . 7 5

  28. The grid below shows one hundred equal parts. Each part is equal to one hundredth. How many hundredths are in one tenth?

  29. Write the place value for eachbolddigit.

  30. Write the number that is ten times as many.

  31. There are 100 fiction books in the classroom library. The school library has ten times as many fiction books. What is the number of fiction books in the school library?

  32. Ryan and Colin collected aluminum cans for the school recycling project. Look at the chart to find out who collected the most cans. Find the difference between the number of cans collected.

  33. Kiley baked 3 times as many muffins as Kayla for the school bake sale. If Kayla baked 36 muffins, how many did Kiley bake?

  34. Mrs. B has 6 gallons of gas in her car. Her tank can hold 15 gallons. Will Mrs. B need more or less than 10 gallons of gas to fill her tank? _______ If gas is $3.49 per gallon, how much will it cost to fill up the tank?

  35. Ethan found two shells that are the same shape but are different sizes. One weighs 0.01 pound and the other weighs ten times as much. How much does the heavier shell weigh?

  36. Charlie and Kohle are discussing the value of the first 1 and the second 1 in the number 4.115 Charlie thinks the first 1 has greater value than the second. Is he correct?

  37. Decimals on the number line. 0 1 2 3 4 Locate 1.90 on the number line.

  38. Decimals on the number line. 0 1 2 3 4 Locate 2.3 on the number line. Locate 4.1 on the number line.

  39. Decimals on the number line. 0 1 2 3 4 Locate 0.8 on the number line. Locate 3.4 on the number line.

  40. Name the points on the number line. A B C D 0 1 2 3 4

  41. Mark each point on the number line. 0 1 2 3 4

  42. Decimals on the number line. A B C D E F 7 8 9

  43. Decimals on the number line. A B C D E F 2 3 4

  44. Decimals on the number line. 7.00 7.30 7.60

  45. Decimals on the number line. 10 11 12 13 14 Locate 10.85 on the number line. Locate 12.42 on the number line.

  46. Decimals on the number line. 0 1 2 3 4 How many tenths between 1 and 2? How many hundredths between 1 and 2?

  47. Decimals on the number line. 7 8 9 Name two decimals between 8.4 and 8.6

  48. Sea level at Key West is rising about 1.8 millimeters per year. What is the place value of the digit 8 in this number?

  49. How do you round to the nearest tenth? What is 211.98 rounded to the nearest tenth? Look at the tenths place 211.98 Look at the digit to the right. 211.98 211.98 rounds to 212.0 Since the digit is 8, the digit in the tenths place increases by 1.

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