0% 0 votes, 0 avg 0 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. Duration: 20 minutes Sorry! Test time is over. Number Play Read Test instructions - ๐ Total Questions: 20 ๐ Test Duration: 20 โ Test Format: MCQ ๐ Test Topic: Number Play ๐ Pass Score: 50% N.B. Do not refresh your browser during test time. 1 / 20 In the Collatz rule, if the number is even, we Divide by 2 Add 1 Multiply by 3 Square it Incorrect Answer! Correct Answer! Explanation:ย 2 / 20 Who discovered the Kaprekar constant? Aryabhata Ramanujan Newton D. R. Kaprekar Incorrect Answer! Correct Answer! Explanation:ย 3 / 20 In a 9-cell row, what is the maximum possible number of supercells? 4 3 6 5 Incorrect Answer! Correct Answer! Explanation:ย 4 / 20 Pattern problems help develop Logical thinking Guessing Memorization Speed writing Incorrect Answer! Correct Answer! Explanation:ย 5 / 20 Which digit sum pattern is seen in consecutive digits (123, 234, 345)? Multiples of 3 Prime Even Odd Incorrect Answer! Correct Answer! Explanation:ย 6 / 20 Repeated addition is a form of Subtraction Estimation Multiplication Division Incorrect Answer! Correct Answer! Explanation:ย 7 / 20 Who has the winning strategy in Game 21? Anyone Second player None First player Incorrect Answer! Correct Answer! Explanation:ย 8 / 20 Collatz sequences always reach 2 0 5 1 Incorrect Answer! Correct Answer! Explanation:ย 9 / 20 How many 5-digit numbers exist? 9,000 1,00,000 99,999 90,000 Incorrect Answer! Correct Answer! Explanation:ย 10 / 20 Can a table be filled with different numbers and have no supercells? Sometimes No Only with repetition Yes Incorrect Answer! Correct Answer! Explanation:ย 11 / 20 If the number is odd, we Subtract 1 Add 2 Multiply by 3 and add 1 Divide by 2 Incorrect Answer! Correct Answer! Explanation:ย 12 / 20 The reverse of 47 is 84 75 74 97 Incorrect Answer! Correct Answer! Explanation:ย 13 / 20 Which number is closest to 10,000? 9590 9950 8400 9000 Incorrect Answer! Correct Answer! Explanation:ย 14 / 20 In mental math, numbers can be used - Not reused Multiple times Only twice Only once Incorrect Answer! Correct Answer! Explanation:ย 15 / 20 How many times does digit โ7โ appear from 1 to 1000? 250 300 200 350 Incorrect Answer! Correct Answer! Explanation:ย 16 / 20 How many 2-digit numbers exist? 90 99 9 100 Incorrect Answer! Correct Answer! Explanation:ย 17 / 20 Mental math mainly improves - Writing Speed Guessing Memory Incorrect Answer! Correct Answer! Explanation:ย 18 / 20 Can a child standing at the end of the line say โ2โ? Yes Depends on height No Sometimes Incorrect Answer! Correct Answer! Explanation:ย 19 / 20 Estimation gives - Exact value Wrong value Decimal value Approximate value Incorrect Answer! Correct Answer! Explanation:ย 20 / 20 6174 is related to Estimation Palindromes Kaprekar process Collatz rule Incorrect Answer! Correct Answer! Explanation:ย Hello! Please enter your correct Name and Email to view your results for "Number Play" test. Your score isThe average score is 0%Found this helpful? Challenge your friends! Share the %%quiz_name%%ย test and see who gets the highest score. LinkedIn Facebook VKontakte Hello %%user_name%%! ๐จโ๐ฉโ๐งโ๐ฆ Join Our Community ๐๐ 0% Restart Test Give feedback on the "Number Play" test. Thanks for your feedback. Send feedback