STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers 1 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers 1.1 Understand and use integers (positive, negative and zero) both as positions and translations on a number line 1)The diagram shows how the water level of a river went down during a drought. The measurements are in metres. (a) By how many metres did the water level go down? Answer ………………………………………………………………………………………….[1] 2 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers (b) A heavy rainfall followed the drought and the water level went up by 1.6 metres. What was the water level after the rainfall? Answer ………………………………………………………………………………………….[1] 2) On a journey a bus takes 35 minutes to travel the first 10 kilometres. It then travels a further 20 kilometres in the next 40 minutes. The bus started the journey at 18 50. At what time did it complete the journey? Answer ………………………………………………………………………………………….[1] 3) The Dead Sea shore is 395 metres below sea level. Hebron is 447 metres above sea level. Find the difference in height. 3 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers Answer ………………………………………………………………………………………….[1] 4) Carlos buys a box of 50 oranges for $8. He sells all the oranges in the market for 25 cents each. (a) Calculate the profit he makes. Answer……………………………………………………………………………………………… [2] 1.2 Understand place value Consider the number 43,543.137. List the place values of the number 3. Answer: 1st Place Value……………………………………………………………………………………………… [1] Answer 2nd Place Value……………………………………………………………………………………………… [1] Answer 3rd Place Value……………………………………………………………………………………………… [1] 1.3 Order quantities by magnitude and demonstrate familiarity the symbols = , ≠ , <, >, ≤ , ≥ 1)Use one of these symbols =, <, > to complete the following number sentences. 1 a) ½ _____ 4/8 4 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers Answer (a)……………………………………………………………………………………. [1] b) 3/7 ______ 144/343 Answer (b)……………………………………………………………………………………. [1] 1.4 Understand and use equivalent fractions, simplifying a fraction by cancelling common factors 1) Look at the numbers 21, 35, 49, 31, 24. From this list write down (a) a square number, Answer (a)……………………………………………………………………………………. [1] (b) a prime number. Answer (b)…………………………………………………………………………………………. [1] 1.5 Understand and use mixed numbers and vulgar (improper) fractions 5 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers 1 a) Convert 5 1/3 to a vulgar fraction. Answer (a)……………………………………………………………………………………. [2] b) Convert 105/4 to a mixed number. Answer (a)……………………………………………………………………………………. [2] 1.6 Identify common denominators Find the common denominator of a) 5/6 and 1/9 Answer (a)……………………………………………………………………………………. [1] Work out: b) 5/6 + 1/9 Answer (a)……………………………………………………………………………………. [2] 1.7) Apply common denominators to order fractions 1) Order these fractions from least to greatest 6 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers 7/9, 4/7 , 2/3, 5/6, ½1. Answer (a)……………………………………………………………………………………. [3] Sarah has 1/3 of the land and her dad Mohamed has ½ the land. Her sister Latifa has 1/5 of the land. Who has the most land? Who has the least? Put the fractions in order from least to greatest. Answer…………………………..; ……………………………. Answer .............. ............. .............. [2] 1.8 Calculate a given fraction of a given quantity, expressing the answer as a fraction 1) Sara made 15 cupcakes for her class. Her teacher ate 1/5 of the cupcakes, and her friends ate 2/5 of the cupcakes. a. What fraction of the cupcakes were eaten? Answer (a)……………………………………………………………………………………. [1] b. What fraction of the cupcakes were left? Answer (a)……………………………………………………………………………………. [1] 7 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers c. How many cupcakes were left? Answer (a)……………………………………………………………………………………. [1] 1.9 Express a given number as a fraction of another number 1)Ali spends 56 dirhams on grape leaves. This amount is ¼ of his allowance. Calculate his allowance. Answer DHS.............................................[2] 2) Alphonse spends $28 on food. This amount is 4/9 of his allowance. Calculate his allowance. Answer (a)……………………………………………………………………………………. [1] 2) Joseph, Maria and Rebecca each win a prize. Their total prize money is $30. Joseph wins 7/12 of the $30. Maria wins 3/10 of the $30. 8 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers Rebecca wins the rest of the $30. Calculate the amount each receives. Answer: Joseph $............................................................................................... [2] Maria $................................................................................................ [2] Rebecca $............................................................................................ [2] 1.10 Add and subtract fractions with like and unlike denominators and mixed numbers 1) Write down a common multiple of 6 and 8. Answer ……………………………………………………………………………………. [1] 2) Show all your working for the following calculations. a) ½ + 2/3 + 1 1/6 Answer (a)……………………………………………………………………………………. [2] 9 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers b) 5/6 – 3/8 Answer (b)……………………………………………………………………………………. [2] The answers are given so it is only your working that will be given marks. 10 STS / ABU DHABI (Girls) Worksheet 1 Practice CA1 Weeks -1-4 Name: .................................................................. Date: .......................... Math Teacher: Mrs. LaVerne Chambers IGCSE Apps: Collins Revision Number Lite GCSE Exams GCSE Maths: Revision Questions--By LearnersCloud.com 11