BASIC 3 || MATHEMATICS || QUESTION 5

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
 
QUESTION 5
 
Subtract by skip counting backwards by 10s.
 
1. 100 – 10 – 10 – 10 = ____

2. 50 – 10 – 10 – 10 = ____

3. 40 – 10 – 10 – 10 = ____

4. 120 – 10 – 10 – 10 – 10 = ___

5. 180 – 10 – 10 – 10 – 10 – 10 = _____

6. 200 – 10 – 10 – 10 – 10 – 10 = _____

7. 290 – 10 – 10 – 10 – 10 – 10 = _____

8. 300 – 10 – 10 – 10 – 10 = ____

9. 380 – 10 – 10 – 10 – 10 – 10 = ____

10. 400 – 10 – 10 – 10 – 10 = _____

1. 100 – 10 – 10 – 10 = 70

2. 50 – 10 – 10 – 10 = 20

3. 40 – 10 – 10 – 10 = 10

4. 120 – 10 – 10 – 10 – 10 = 80

5. 180 – 10 – 10 – 10 – 10 – 10 = 130

6. 200 – 10 – 10 – 10 – 10 – 10 = 150

7. 290 – 10 – 10 – 10 – 10 – 10 = 240

8. 300 – 10 – 10 – 10 – 10 = 260

9. 380 – 10 – 10 – 10 – 10 – 10 = 330

10. 400 – 10 – 10 – 10 – 10 = 360