Lesson Example Discussion Quiz: Class Homework |
Step-4 |
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 256,252 _ _ 240 _. |
|
2 |
Step |
To find the missing numbers in the sequence 256, 252, _, _, 240, you can use the following method. |
|
3 |
Step |
The first number is |
256 |
4 |
Step |
The second number is |
252 |
5 |
Step |
The difference between 256 and 252 is |
256 - 252 = 4 |
6 |
Step |
The difference between 252 and the next number is also |
4 |
7 |
Step |
So the next number is |
252 - 4 = 248 |
8 |
Step |
The difference between 248 and the next number is also |
4 |
9 |
Step |
So the next number is |
248 - 4 = 244 |
10 |
Step |
The difference between 244 and 240 is also |
244 - 240 = 4 |
11 |
Step |
The difference between 240 and the next number is also |
4 |
12 |
Step |
So the next number is |
240 - 4 = 236 |
13 |
Step |
So the missing numbers are 248,244 and 236 and the complete sequence is 256,252,248,244,240,236. |
|
14 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
|
15 |
Choice.A |
This is not correct because it has the numbers in the reverse order compared to the identified sequence |
236,244,248 |
16 |
Choice.B |
The first number, 235, doesn’t follow the pattern of subtracting 4 from the previous term. Therefore, option B is not correct |
235,244,248 |
17 |
Choice.C |
This is not correct because it doesn’t follow the consistent pattern of decreasing by 4. In this sequence, the second difference is not 4 |
236,244,249 |
18 |
Choice.D |
This is correct because it follows the established pattern of decreasing by 4 in each step |
248,244,236 |
19 |
Answer |
Option |
D |
20 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
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