BASIC 3 || MATHEMATICS || QUESTION 4

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)
 
*Skip Count backwards by 10s
 
TIP/HINT: To skip count backwards by 10s, subtract 10 from the number given to get the next number
Example: 70, 60, 50, 40 etc.
From the example above, 10 was subtracted from each number to get the next number
70 – 10 = 60
60 – 10 = 50 etc.
 
 QUESTION 4
 
 Use the table or chart below as a guide


Fill in the missing numbers by skip counting backwards by 10s.
 
1. 70, ____, ____, 40, 30

2. 100, ___, 80, ____, ____

3. 200, ____, _____, 170, ____

4. ____, 140, ____, ____, 110

5. 300, ____, 280, ____, 260

6. 400, ____, ____, 370, ____

7.  ____, ____, 330, ____, 310

8. 400, ____, ____, 370, 360, ____

9. 340, ____, 320, ____, _____

10. 500, 490, ____, _____, _____

11. 450, _____, _____, 420, _____

12. ____, 590, ____, _____, ____

13. 700, ____, ____, 670, _____

14. 630, ____, ____, 600, 590, ____

15. 790, 780, ____, ____, ____, 740

1. 70, 6050, 40, 30

2. 100, 90, 80, 7060

3. 200, 190180, 170, 160

4. 150, 140, 130120, 110

5. 300, 290, 280, 270, 260

6. 400, 390380, 370, 360

7.  350340, 330, 320, 310

8. 400, 390380, 370, 360, 350

9. 340, 330, 320, 310300

10. 500, 490, 480470460

11. 450, 440430, 420, 410

12. 600, 590, 580570560

13. 700, 690680, 670, 660

14. 630, 620610, 600, 590, 580

15. 790, 780, 770760750, 740

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