COUNTING, READING AND WRITING OF NUMBERS (11 – 20) AND (21 – 50)

Back to: Mathematics Primary 1

Hello children, welcome back to class

 

In counting numbers, after the number 10, which is written as 1 and 0, then you start replacing 0 with 1, then 2, 3, 4 and so on.

 

10  ——- 1 AND 0

11 ——– 1 and 1

12 ——– 1 and 2

13 ——— 1 and 3

 

ACTIVITY

• Complete the above exercise writing 14 to 19

 

After the number 19, which is written as 1 and 9, the next number is written 2 and 0. Then you start replacing the 0 with 1, then 2 and 3 and so on

20 ——- 2 and 0

21 ——- 2 and 1

22 ——- 2 and 2

23 ——- 2 and 3

 

ACTIVITY

• Complete the above exercise writing 24 to 30
• Try writing 31 to 40
• Then 41 to 50
• Count the numbers as you write.

Study the following flashcards

                               

                 

 

EVALUATION

• Copy, Complete and fill in the blank spaces in the table below

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