P5 Maths (新加坡 小学5年级 数学 练习 英文版)(7页).doc
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1、-P5 Maths (新加坡 小学5年级 数学 练习 英文版)-第 7 页CHAPTER 1WHOLE NUMBERSNumber notation and place values up to 10 millionApproximation and estimationMultiplication and division of numbers up to 4 digits by a 2-digit whole numberOrder of operations1. Round off 69 570 km to the nearest 1 000 km. 2. Round off 7 534
2、 089 to the neatest thousand.3. A schools population is 2 904. Round off this number to the nearest thousand.4. The value of the digit 8 in 980 036 is _ .5. What is the sum of the fourth multiple of 8 and the sixth multiple of 4?6. What is 100 tens less than 1 million?7. What is 90 hundreds more tha
3、n 1 million?8. How many tens are there in 48 200?9. There are _ hundreds in 1 million.10. The value of the digit 8 in 487 543 is 8 x _.11. Write nine million, six hundred and seven thousand and eighty-four in figures. 12. Write five hundred and seven thousand and thirty-three in numerals.13. Evaluat
4、e (Solve) 507 x 28.14. The product of two numbers is 9 570. If the smaller number is 58, what is the bigger number?15. The sum of two numbers is 180. The difference between the two numbers is 26. Find the larger number.16. Find the value of 85 + 10 x (80 60 ) 4.17. Find the value of 42 + (139 19) 6
5、x 2.18. 162 x 15 = 162 x 10 + () What is the missing number in the box?19. What is the remainder when 2020 is divided by 8?20. When Sarah opens a book, the sum of the facing page numbers is 273. What is the smaller page number?21. Roy and Lin had the same amount of money. When he spent four times as
6、 much as Lin, he had $22 left while she had $49 left. How much did Lin have at first?22. There are _ tens in 1 million.23. The value of 9 in 129 300 is _.24. Write 1 489 311 in words: _CHAPTER 2 MONEY, MEASURES & MENSURATIONConversion of units of measure involving decimals and fractionsVolume of a c
7、ube and a cuboidArea of a triangle1. A wooden block measures 10 cm by 8 cm by 2.5 cm. If 4 such wooden blocks are packed exactly into a rectangular box, what is the capacity of the box?2. The area of a floor covered in square tiles if 1250 cm2. The length of each square tile is 5 cm. How many square
8、 tiles are there covering the floor?3. A papaya is as heavy as two oranges of equal mass. If the mass of each orange is 160 g , find the mass of 3 such papayas.CHAPTER 3 STATISTICSLine graphs (Reading , interpreting and solving problems)CHAPTER 4 GEOMETRYAngles on a straight line, angles at a point,
9、 vertically opposite angles8-point compassProperties of a parallelogram, rhombus, trapezium, and triangleGeometrical construction: Draw a square, rectangle, parallelogram, rhombus and triangle from given dimensionsTessellationCHAPTER 5 FRACTIONSAddition and subtractions of mixed numbers and unlike f
10、ractionsProduct of fractionsConcept of fraction as divisionDivision of a proper fraction by a whole number1. What is of 1h 8 min? _2. Express day in hours. _3. There are 18 apples and 12 oranges in a basket. What fraction of the fruits are oranges? _4. How many hours is of a day? _5. There are _ six
11、ths in .6. Mr. Tan bought some tables. of them were red. The remaining 33 tables were white. How many tables did he buy altogether? Ans: _7. Carl had 8 m of rope. He cut out 3 pieces of ropes measuring 1 m each. Find the length of the rope left.Ans: _8. of a number is 36. What is of the number? _9.
12、of the people at a concert were women and of them were children. If there were 300 men, how many women were there at the concert? Ans: _10. 27 kg of rice are shared equally among 7 people. How much rice does each person get? Leave your answer in its simplest form. _()11. Express 1 390 m as a fractio
13、n of 2 km._()12. A piece of wire m long is cut into 6 equal pieces. Amy used 3 pieces to tie some presents. What fraction of the wire did she use altogether?_()13. Find the value of 2 + 1 ._()14. Ben was told to guess a number. He guessed the number to be 8. His guess is of the actual number. What i
14、s the actual number?_()15. 10 girls received kg of strawberries each. What is the total weight of strawberries in kg? (Express your answer in its simplest form)_()16. Henry bought 60 m of ribbon. He gave away of the ribbon to Kelly. How many metres of the ribbon did he give away?_()17. Bala gave of
15、his stamps to his brother and of the remainder to his sister. He had 10 stamps left. How many stamps did he have at first?_()18. A rabbit weighs kg. A hamster is of the mass of the rabbit. What is the total mass of the two animals? (Express your answer as a mixed number in its simplest form.)_()19.
16、A pair of jeans cost 3 times as much as a skirt. Brenda spent of her money on some skirts and half of her remaining money on a pair of jeans. How many skirts did she buy?_()CHAPTER 6 DECIMALSMultiplication up to 2 decimal places by a 2-digit whole numberMultiplication and division up to 3 decimal pl
17、aces by tens, hundreds, thousands1. Zafran paid $243 for 90 markers. If the price of each marker decreased by $0.60, how many more markers could he buy with the money he had? 2. Round off 9.837 to 1 decimal place. -()3. Round off 202.028 to 2 decimal place. -()4. Round off 29.192 to 2 decimal place.
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