BASIC 3 || MATHEMATICS || QUESTION 6

STRAND 1: NUMBERS

SUB-STRAND 1: Counting, Representation, Cardinality and Ordinality
CONTENT STANDARD 1: Counting and estimate quantities from 0 to 10 000
INDICATORS AND EXEMPLARS 1: Use number names and the counting sequence to count and estimate quantities up to 10,000.
 
(E.g. 1. Skip count forwards and backwards from 0 to 10,000 by 10s, 50s 100s, 500s and 1000s starting at any point. Identify and correct errors or omissions in a skip counting sequence)
 
*Identifying and correcting errors in skip counting by 10s forwards and backwards
 
Question focus: Identifying and correcting errors in skip counting by 10s forwards
 
QUESTION 6
 
Example:
 
10, 30, 50, 60, 71
 
To find the errors, correct skip count and omissions follow the steps below;
 
STEPS
 
1. Write the correct skip count of the figures
 
10, 20, 30, 40, 50, 60, 70
 
2. Find the omissions from the figures given.
 
20, 40 were omitted.
 
3. Find the error (s) made from the figures
 
Instead of 70, 71 was written and that makes it the error.
 
Now, answer the following questions
 
1. 20, 30, 50, 70, 81, 90, 101
Correct Skip Count:
Omissions:
Errors:
 

2. 40, 50, 70, 90, 101, 110, 120
Correct Skip Count:
Omissions:
Errors:
 

3. 140, 160, 180, 191, 200, 211
Correct Skip Count:
Omissions:
Errors:

 
4. 130, 150, 170, 181, 190, 201
Correct Skip Count:
Omissions:
Errors:
 

5. 100, 130, 141, 150, 160, 171
Correct Skip Count:
Omissions:
Errors:
 

6. 200, 220, 240, 251, 260, 271
Correct Skip Count:
Omissions:
Errors:
 

7. 280, 310, 320, 331, 340, 351, 360, 371
Correct Skip Count:
Omissions:
Errors:
 

8. 400, 440, 451, 460, 471, 480, 491, 500
Correct Skip Count:
Omissions:
Errors:
 

9. 510, 540, 551, 560, 571, 580, 591, 600, 611, 620
Correct Skip Count:
Omissions:
Errors:
 

10. 600, 650, 680, 691, 700, 711, 720, 731, 740, 751, 761, 770, 780, 790, 801
Correct Skip Count:
Omissions:
Errors:
 

1. 20, 30, 50, 70, 81, 90, 101
Correct Skip Count: 20, 30, 40, 50, 60, 70, 80, 90, 100
Omissions: 40, 60
Errors: 81, 101
 
2. 40, 50, 70, 90, 101, 110, 120
Correct Skip Count: 40, 50, 60, 70, 80, 90, 100, 110, 120
Omissions: 60, 80
Errors: 101
 
3. 140, 160, 180, 191, 200, 211
Correct Skip Count: 140, 150, 160, 170, 180, 190, 200, 210
Omissions: 150, 179
Errors: 191, 211
 
4. 130, 150, 170, 181, 190, 201
Correct Skip Count: 130, 140, 150, 160, 170, 180, 190, 200
Omissions: 140, 160
Errors: 181, 201
 
5. 100, 130, 141, 150, 160, 171
Correct Skip Count: 100, 110, 120, 130, 140, 150, 160, 170
Omissions: 110, 120, 170
Errors: 141, 171
 
6. 200, 220, 240, 251, 260, 271
Correct Skip Count: 200, 210, 220, 230, 240, 250, 260, 270
Omissions: 210, 230
Errors: 251, 271
 
7. 280, 310, 320, 331, 340, 351, 360, 371
Correct Skip Count: 280, 290, 300, 310, 320, 330, 340, 350, 360, 370
Omissions: 290, 300
Errors: 331, 351, 371
 
8. 400, 440, 451, 460, 471, 480, 491, 500
Correct Skip Count: 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500
Omissions: 410, 420, 430
Errors: 451, 471, 491
 
9. 510, 540, 551, 560, 571, 580, 591, 600, 611, 620
Correct Skip Count: 510, 520, 530, 540, 550, 560, 570, 580, 590, 600, 610, 620
Omissions: 520, 530
Errors: 551, 571, 591, 611
 
 
10. 600, 650, 680, 691, 700, 711, 720, 731, 740, 751, 761, 770, 780, 790, 801
Correct Skip Count: 600, 610, 620, 630, 640, 650, 660, 670, 680, 690, 700, 710, 720, 730, 740, 750, 760, 770, 780, 790, 800
Omissions: 610, 620, 630, 640, 660, 670
Errors: 691, 711, 731, 751, 761, 801