BASIC 2 MATHEMATICS QUESTION 4

STRAND 1: Number

SUB-STRAND 1: Counting, Representation, Cardinality & Ordinality
CONTENT STANDARD: Count and estimate quantities from 0 to 1000 

INDICATORS AND EXEMPLARS:
INDICATOR: Use number names, counting sequences and how to count to find out “how many?”
  
(E.g. 1.  Skip count forwards and backwards to and from 1000 respectively by 2s, 5s and 10s, starting at 0 or at multiples of 2, 5, 10, 50 and 100; Identify and correct errors or omissions in counting or skip counting sequences)
 
-Skip counting backwards by 2s
 
TIP: In this question, to skip count backwards by 2s, you must deduct 2 from the number given.
Example:  When given 5, the next number when skipped count backwards by 2(2s) is 3 that is 5 -2 = 3.
So therefore, 5, 3, 1,  etc.
 
1. 15, ___, 11, ___, ___, 5

2. 21, ___, 17, ____, ____, 11

3. 11, ____, ____, 5, 3, 1

4. 17, ___, ____, ____, 9, 7

5. 25, 23, ___, ____, ____, ____

6. 31, ___, ___, 25, ____, ____

7. ___, ____, ____, 21, 19, ___, 15

8. ____, ____, ____, ____, 35, 33, ___

9. ____, ____, 51, ___, 47, ___, 43

10. ____, ____, ____, 57, 55, ____
 

1. 15, 13, 11, 9, 7, 5

2. 21, 19, 17, 15, 13, 11

3. 11, 9, 7, 5, 3, 1

4. 17, 15, 13, 11, 9, 7

5. 25, 23, 21, 19, 17, 15

6. 31, 29, 27, 25, 23, 21

7. 27, 25, 23, 21, 19, 17, 15

8. 43, 41, 39, 37, 35, 33, 31

9. 55, 53, 51, 49, 47, 45, 43

10. 63, 61, 59, 57, 55, 53