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Math SA1 Revision Sheet Find the place value of underlined digits 1. 256,987,456 = 2. 30,089,543 = 3. 2,51,47,789 = 4. 86,23,47,895 = 5. 15,69,33,784 = Write the standard form and word form of given numbers in both Indian System and international system: 1. 239004589 2. 127433256 3. 15894320 4. 1985001 5. 190046001 1. Find the difference between the place values of 4 in 124,563,241 2. Find the difference between the place values of 9 in 9,52,98,743 3. Find the difference between the place values of 3 in 56,36,97,813 Write the Roman numerals of the given numbers: 1. 2568 = 2. 1225 = 3. 369 = 4. 487 = 5. 2305 = 6. 967 = 7. 2643 = Write the Hindu Arabic numeral for the given Roman numbers: 1. MDXLVII = 2. MMDCLXXXIV = 3. CDXXIII = 4. DCCCLX = 5. MMMDXLII = Round these numbers to nearest 100 s 1. 875 = 2. 6324 = 3. 1596 = Round these numbers to nearest 1000 s 1. 5894 = 2. 12478 = 3. 3056 = Round these numbers to nearest 10000 s 1. 78456 = 2. 13652 = 3. 236547 = Find the HCF & LCM of the given numbers: 1. 2. 3. 4. 5. 25, 75 32, 18 14, 12, 18 24, 40, 32 125, 300 Solve the following question by writing the statements 1. In an election 23875501 votes were polled. There were three candidates in the election. Two of them got 9823823 and 11575923 votes respectively. How many votes were polled in favor of the third candidate? 2. A large poultry farm produced 6452148, 7026075 and 8121236 eggs in three successive years. Find the total number of eggs produced in three years. 3. In a cold storage, there were 386532308 kg potatoes. If 364228208 kg potatoes are sold off then how many kg of potatoes are left in the godown? 4. Manny owns 283 sets of basketball cards. Each set has exactly 594 cards. What is the total number of basketball cards Manny owns? 5. A fitness center has a swimming pool and a gym. There are 3,915 members in the fitness club. There are two kinds of membership: regular and VIP. Each regular member pays $65 per month and each VIP member pays $480 per year. a) How much in membership fees does the fitness center receive from the regular members each month, if there are 1230 regular members? b) For every 27 members, the fitness center must hire 1 staff member for the gym. How many staff members does the fitness center need to hire for the gym? 6. Find the average of first 10 odd numbers. 7. The average height of a family of five is 150 cm. If the heights of 4 family members are 153, 150, 151 and 152, find the height of the fifth member. 8. Find the smallest number divisible by 56 and 60 that leaves a remainder of 7. 9. A basketball team played 20 games this season. Their average score for the first 19 games was 80 points per game. What score do they need to get in the last game to have an overall average score of 85 points per game for the entire season? 10. Maria worked 10 hours on Friday, 12 hours on Saturday and 300 minutes on Sunday. What was the average hours she worked on all those days? 11. Find the least length of a rope which can be cut into whole number of pieces of lengths 45cm, 75cm and 81cm respectively. 12. What is the least number of saplings that can be arranged in rows of 12,15 or 40 in each row? 13. 210 oranges, 252 apples and 294 pears are equally packed in cartons so that no fruit is left. What is the biggest possible number of cartons needed? 14. Circle the numbers that have been sorted correctly on the Carroll diagram Crore s place is even Ten thousand s digit is even One lakh s place is odd 12,11,23,465 67,45,23,478 67,81,80,502 18,79,032 Ten lakh s place is odd 53,14,28,608 8,58,01,923 68,80,517 1,78,43,789
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