Math Olympiad Grade 3 Numbers Worksheet-1

Numbers Worksheet-1

Look at the following magic square and answer the following questions - (1), (2):

1. How many even numbers are there in the given square?

       A. 10                   B. 12                    C. 14                    D. 16

2. How many odd numbers are there?

       A. 9                     B. 11                    C. 13                    D. 15

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3. What number is the same as 50,000 + 4,000 + 100 + 20 + 7?

       A. 54,127           B. 540,127         C. 5,400,127      D. 5,401,127

4. Write down the numbers from 1 to 25 one after the other. Which digit is on the 25^th place?

       A. 7                      B. 5                      C. 3                     D. 1

5. Which of these is an odd number?

       A. 246                 B. 348                C. 321                 D. 324

6. How many numbers are there which contain two digits?

       A. 0                     B. 90                   C. 99                   D. 100

7. Let's write the numbers from 1 to 15 one after the other :

      1234567 ............ 131415

      Delete 18 digits from this number so that you would get the highest possible number of three digits when arranged the remaining digits in descending order. What is this number?

       A. 999                 B. 789                 C. 987                 D. 415

8. Which number has 5 ten thousands, 7 thousands, 2 tens and 4 ones?

       A. 57,240           B. 57,024           C. 75,024            D. 57,204

Use all the digits above and answer the following questions : (9), (10)

9. The smallest 3-digit number formed is:

       A. 036                B. 306                C. 360                D. 603

10. The greatest 3-digit number formed is:

       A. 306                B. 360                C. 603                D. 630

Answers

(1)–B; (2)–C; (3)–A; (4)–A; (5)–C; (6)–B; (7)–C; (8)–B; (9)–B; (10)–D