SaiBook.us Measurement

Home Course Section

Schedule Admission Social

Step-4

Title: Number lines

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 number line to subtract 35 - 15 =_ .
2	Step	To subtract 35 - 15 on the number line, follow these steps:
3	Step	Draw a number line with positive numbers on the right and negative ones on the left, including 35 and 15.
4	Step	Start at the number 35 on the number line.	35
5	Step	Move 15 units to the left (since we are subtracting 15).	15
6	Step	The point where you land before moving 15 units is your answer.
7	Step	Read the number where you landed. That is the difference of	35 - 15 = 20
8	Step	If you perform these steps, you will end up at the number 20 on the number line, which is the correct difference of 35 - 15.
9	Sumup	Can you summarize what you’ve understood in the above steps?
10	Choice.A	This is correct. If you start at 35 and move 15 units to the left, you land on 20	20
11	Choice.B	This is incorrect. Following the same logic, the result is 20, not 25	25
12	Choice.C	This is incorrect. Moving 15 units to the left from 35 lands you on 20, not 30	30
13	Choice.D	This is incorrect. Subtracting 15 from 35 does not result in 35	35
14	Answer	Option	A
15	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

identify the number line to subtract 35 - 15 =_ .

Step

To subtract 35 - 15 on the number line, follow these steps:

Step

Draw a number line with positive numbers on the right and negative ones on the left, including 35 and 15.

Step

Start at the number 35 on the number line.

Step

Move 15 units to the left (since we are subtracting 15).

Step

The point where you land before moving 15 units is your answer.

Step

Read the number where you landed. That is the difference of

35 - 15 = 20

Step

If you perform these steps, you will end up at the number 20 on the number line, which is the correct difference of 35 - 15.

Sumup

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

Choice.A

This is correct. If you start at 35 and move 15 units to the left, you land on 20

Choice.B

This is incorrect. Following the same logic, the result is 20, not 25

Choice.C

This is incorrect. Moving 15 units to the left from 35 lands you on 20, not 30

Choice.D

This is incorrect. Subtracting 15 from 35 does not result in 35

Answer

Option

Sumup

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