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Lesson Example Discussion Quiz: Class Homework

Step-4

Title: Skip counting sequence

Grade: 2-a Lesson: S1-L1

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Identify the missing numbers 52,55, _ ,61, _ ,67, _.
2	Step	To identify the missing numbers in the sequence 52, 55, _, 61, _, 67, let’s look for the pattern:
3	Step	The first number is	52
4	Step	The second number is 55, which is obtained by adding 3 to the first number	52 + 3 = 55
5	Step	The third number is missing, and it should be obtained by adding 3 to the second number	55 + 3 = 58
6	Step	The fourth number is 61, which we already have in the sequence.
7	Step	The fifth number is missing, and it should be obtained by adding 3 to the fourth number	61 + 3 = 64
8	Step	The sixth number is 67, which we already have in the sequence.
9	Step	The seventh number is missing, and it should be obtained by adding 3 to the sixth number	67 + 3 = 70
10	Step	So, the missing numbers are 58,64, and 70, and the complete sequence is 52, 55, 58, 61, 64, 67.
11	Sumup	Can you summarize what you’ve understood in the above steps?
12	Choice.A	This sequence is increasing by 4, not 3	79,83,85
13	Choice.B	This sequence is increasing, but not by a constant value of 3	64,73,79
14	Choice.C	This sequence is increasing by 3, but it starts at 65, not 58	65,68,71
15	Choice.D	This is the correct one as it follows the pattern of increasing by 3	58,64,70
16	Answer	Option	D
17	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Identify the missing numbers 52,55, _ ,61, _ ,67, _.

Step

To identify the missing numbers in the sequence 52, 55, _, 61, _, 67, let’s look for the pattern:

Step

The first number is

Step

The second number is 55, which is obtained by adding 3 to the first number

52 + 3 = 55

Step

The third number is missing, and it should be obtained by adding 3 to the second number

55 + 3 = 58

Step

The fourth number is 61, which we already have in the sequence.

Step

The fifth number is missing, and it should be obtained by adding 3 to the fourth number

61 + 3 = 64

Step

The sixth number is 67, which we already have in the sequence.

Step

The seventh number is missing, and it should be obtained by adding 3 to the sixth number

67 + 3 = 70

Step

So, the missing numbers are 58,64, and 70, and the complete sequence is 52, 55, 58, 61, 64, 67.

Sumup

Can you summarize what you’ve understood in the above steps?

Choice.A

This sequence is increasing by 4, not 3

79,83,85

Choice.B

This sequence is increasing, but not by a constant value of 3

64,73,79

Choice.C

This sequence is increasing by 3, but it starts at 65, not 58

65,68,71

Choice.D

This is the correct one as it follows the pattern of increasing by 3

58,64,70

Answer

Option

Sumup

Can you summarize what you’ve understood in the above steps?