Revision Worksheets Units 4 & 8 PDF

Revision worksheet Unit 4 & 8 Name: __________________________ Grade/Section: _________ Unit 4 1. The difference between 2 numbers is 8. One number is -4. What could the other numbers be? _______________ OR...

Revision worksheet Unit 4 & 8 Name: __________________________ Grade/Section: _________ Unit 4 1. The difference between 2 numbers is 8. One number is -4. What could the other numbers be? _______________ OR _______________ 2. Sandra is thinking of a number. She subtracts 3 212 from it. She then adds 5 601 to it. Her final answer is 10 974. What number did she start with? 3. Sandra travels to Cairo and Copenhagen. She returns home after each trip. The distance to Cairo is 23 567 km. The distance to Copenhagen is 103 452 km. How many km does she travel altogether? 4. The thermometer showed -4°C in the morning. The temperature increased by 5°C, then again increased by 5°C and then decreased by 1°C. What temperature is the thermometer showing now? 5. Complete the table below where x represents the books Ali has and y represents the number of books Samad has. Samad has 6 less books than Ali x (Ali’s books) 10 9 y (Samad’s Books) 10 12 31 Write a number sentence linking x, y and 6. _____________________________________________________ 6. Following are the temperatures of a few cities. City Temperature Islamabad 23℃ Dubai 41℃ Vancouver –5℃ Zurich –1℃ Istanbul 12℃ a. What is the difference in temperature between Islamabad and Dubai? b. What is the difference in temperature between Istanbul and Zurich? c. What is the difference in temperature between the warmest and the coldest city? 7. The following diagram shows two boxes next to each other. If their total length is 20 m, and b is 8 m longer than a, what is the value of a and b. SHOW ALL YOUR WORKING a b Unit 8 1. a. What is the total of 4.79 and 5.306? b. What is the difference between 4.79 and 5.306. 2. Mary had $305.80 in her bank account. She deposited $250.25 more and then withdrew $317.50 from her account. What is the balance now in her account? 3a. Tania bought a book for $152.75, a pen for $45.25 and a chocolate for $28.75. What amount did she spend? b. She paid with a $500 bill. How much change did she get? 4. Calculate (simplify and change answers to mixed numbers where possible) 5 3 a. 16 + 4 =  4 3 b. 9 − 8 = 4 3 c. 3 − 4 = 1 7 d. 3 + 15 = 4 2 e. 1− 9 − 12 = 2 12 5. Heidi drives for 9 hours on Monday and Tuesday. She then drives 7 hours on Wednesday. How long did she spend driving? 3 1 6. Sana bought plant seeds. 4 of them were sunflower seeds, 9 of them were tulip seeds, the rest were pumpkin seeds. What fraction of her seeds were pumpkin seeds? 1 3 7. Sam eats 5 of chocolate bar and Tom eats 12 of the chocolate bar. What fraction of the chocolate bar is left? 8. Find the missing fraction. 3 3 a. 4 + 12 = _______  2 1 b. ______ + 5 = 2