In the following pair of numbers:
identify the number to the left of the other number on a number line:
i. 100000, 99999 ii. 65478, 65511

Answer

To solve the problem of identifying the number to the left of the other number on a number line for the given pairs, we can follow these steps:

### Step 1: Identify the first pair of numbers
The first pair of numbers is 100000 and 99999.

### Step 2: Determine the number to the left
To find the number to the left of 100000, we subtract 1 from it:
- 100000 - 1 = 99999

### Step 3: Identify the left number
Since 99999 is the result of subtracting 1 from 100000, we conclude that:
- The number to the left of 100000 is 99999.

### Step 4: Identify the second pair of numbers
The second pair of numbers is 65478 and 65511.

### Step 5: Determine the number to the left
To find the number to the left of 65478, we subtract 1 from it:
- 65478 - 1 = 65477

### Step 6: Identify the left number
Since 65477 is the result of subtracting 1 from 65478, we conclude that:
- The number to the left of 65478 is 65477.

### Step 7: Repeat for the second number in the pair
Now, to find the number to the left of 65511, we subtract 1 from it:
- 65511 - 1 = 65510

### Step 8: Identify the left number
Since 65510 is the result of subtracting 1 from 65511, we conclude that:
- The number to the left of 65511 is 65510.

### Final Summary:
1. For the pair (100000, 99999):
- The number to the left of 100000 is 99999.
2. For the pair (65478, 65511):
- The number to the left of 65478 is 65477.
- The number to the left of 65511 is 65510.