Step-2

Title: Counting the missing numbers

Grade: 2-a Lesson: S1-L4

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 156 _ 162 _ 168 _ 174 _ 180 _ 186.

2

Step

To identify the missing numbers in the sequence 156,,162,,168,,174,,180,_,186. you need to Observe the pattern in the given numbers:

3

Step

The first number is

156

4

Step

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

156 + 3 = 159

5

Step

The third number is 162, which is obtained by adding 3 to the second number

159 + 3 = 162

6

Step

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

162 + 3 = 165

7

Step

The fifth number is 168, which is obtained by adding 3 to the fourth number

165 + 3 = 168

8

Step

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

168 + 3 = 171

9

Step

The seventh number is 171, which is obtained by adding 3 to the sixth number

171 + 3 = 174

10

Step

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

174 + 3 = 177

11

Step

The ninth number is 180, which is obtained by adding 3 to the eighth number

177 + 3 = 180

12

Step

The tenth number is missing, and it should be obtained by adding 3 to the ninth number

180 + 3 = 183

13

Step

The eleventh number is 186, which is obtained by adding 3 to the tenth number

183 + 3 = 186

14

Step

So, the missing numbers are 159,165,171,177 and 183, and the complete sequence is 156,159,162,165,168,171,174,177,180,183,186.

15

Sumup

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

16

Choice.A

This is correct because it follows the observed pattern of adding 3 to each successive number in the sequence

159,165,171,177,183

17

Choice.B

This is not correct because it does not follow the observed pattern of adding 3 to each successive number

154,160,175,178,183

18

Choice.C

This is not correct because it does not follow the observed pattern of adding 3 to each successive number

154,160,168,175,178

19

Choice.D

This is not correct because it does not follow the observed pattern of adding 3 to each successive number

168,175,183,187,196

20

Answer

Option

A

21

Sumup

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


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