Name: ___________________

Date:___________________

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Grade 1 - Mathematics
2.9 Counting by 10

Method:
  1. Read out the numbers given.
  2. Notice the pattern in the sequence of numbers.
  3. Guess the number that should come next.
Example

5, 15, 25, 35,___
Look at the numbers in the above sequence. Here the difference between one number to the next is 10, therefore, it is skip counting by 10. That is, to each number we add 10 to get the next number.
In the above example,
15 - 5 = 10
25 - 15 = 10
35 - 25 = 10
Hence, to each number we add 10 to get the next number.

Answer: 45


Directions: Find the missing number. Write 5 examples and show your work.

Name: ___________________

Date:___________________

Grade 1 - Mathematics
2.9 Counting by 10

Q 1: What is the missing number?
11, 21, 31, 41, ___
41
51
61
31

Q 2: What is the missing number?
32, 42, 52, 62, ___
82
72
62
52

Q 3: What is the missing number?
29, 39, 49, 59, ___
79
59
69
49

Q 4: What is the missing number?
12, 22, 32, 42, ___
32
42
52
62

Q 5: What is the missing number?
1, 11, 21, 31, ___
41
21
51
31

Question 6: This question is available to subscribers only!

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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