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1º Tri - Counting by 2", 3", 4", 5", 10"
1º Tri - Counting by 2", 3", 4", 5", 10"

Let's count skipping 2, 3, 4, 5 or 10 numbers.

(Vamos contar pulando 2, 3, 4, 5 ou 10 números)

 

 Count by 2"

2, 4, 6, 8, 10, 12, etc

16, 20, 22, 24, 26, etc.

36, 38, 40, 42, 44, etc.


 Count by 3"

 3, 6, 9, 12, 15, 18, etc

15, 18, 21, 24, 27, etc.


Count by 4"

4, 8, 12, 16, 20, 24, etc.

32, 36, 40, 44, 48, etc.


Count by 5"

5, 10, 15, 20, 25, 30, etc.

20, 25, 30, 35, 40, 45, etc.


Count by 10"

10, 20, 30, 40, etc.

30, 40, 50, 60, etc

 

Complete the exercise orally:

(Faça o exercício oralmente)

 

Counting          08, 10, _______, _______, _______, _______, _______

Counting          12, 15,  _______, _______, _______, _______, _______

Counting          24, 28,  _______, _______, _______, _______, _______

Counting          30, 35,  _______, _______, _______, _______, _______

Counting          40, 50,  _______, _______, _______, _______, _______

 

 

 

 

Answers:

08, 10, 12, 14, 16, 18, 20

12, 15, 18, 21, 24, 27, 30

24, 28, 32, 36, 40, 44, 48

30, 35, 40, 45, 50, 55, 60

40, 50, 60, 70, 80, 90, 100