Sunday, 4 November 2018

N2-L2 Whole Numbers Practice : Comparing/Ordering/Rounding


WHOLE NUMBERS – L2 (N2)      (~60 Mins)     Date/Time:                           Tutor:             

(Part 1) Revise(15-20mins)                                               Start Time:                 

(Part2) Practice (~40mins).            Start Time: 

1. Arrange the numbers in order beginning with the smallest.                         Working
(a)      47620, 47591, 46135, 46921 
Answer:                                 

(b)      988, 978, 958, 938, 987
Answer:                                 

2.  Arrange the numbers in order beginning with the greatest.
(a)      714, 722, 709, 720, 710
Answer:                                 

(b)      25426, 25391, 25634, 25553, 25518    
Answer:                                 

3.  Use   4,   7,      6,      9   to from the 
(a) greatest 4-digit number 
Answer:                                 

(b) smallest 4-digit number
Answer:                                 

4.  Circle the odd numbers

         24, 33, 67, 22, 90, 15

5. What number is 20 more than 438?                
Answer:                                 

6.  What number is 112 less than 438?
Answer:                                 

7.  What number is 100 more than 8637?
Answer:                                 

8. What number is 1000 less than 8592?
Answer:                                 

9. Round off 70187 to the nearest:                       
 (a)  ten

 (b) hundred

 (c) thousand

10. Round off 89721 to the nearest 
 (a)  ten

 (b) hundred

 (c) thousand

11*.  Use all the digits 6, 5, 2, 8 to from the number closest to 6000.

12. Mary has 125 stamps. James has 68 more than Mary. How many stamps does James has?

PSLE (2018F)
13. Use the digits below to form the smallest 5-digit odd number. Each digit can only be used once. (21/p1/f)
                     
                             8    1   7    2    5

14. The first three figures in a pattern are shown. How many triangles will Figure 8 have? (29/p1/f)

                                        Total Mark:                /21
Tutor Remark:           


Answer Key:
1a.      46135, 46921, 475591, 47620

1b.      938, 958, 978, 987, 988

2a.      722, 720, 714, 710, 709

2b.      25634, 255553, 25518, 25426, 25391

3.         9764

3b.      4679

4.         33, 67, 15

5.         458

6.         326

7.         8737

8.         8492

9a.      70180

b.         70200

c.         70000

10a.    89720

10b.    87900

10c.    90000

11.      6258

12.      196

13.      81725


14.      64

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