Workout :
154 +3.015 - 14.237

Answer

To solve the problem \( 154 + 3.015 - 14.237 \), we can break it down into two parts: first, we will add \( 154 \) and \( 3.015 \), and then we will subtract \( 14.237 \) from the result.

### Step 1: Add \( 154 \) and \( 3.015 \)

1. **Align the numbers by their decimal points.** Since \( 154 \) is a whole number, we can write it as \( 154.000 \) to align it with \( 3.015 \):
```
154.000
+ 3.015
__________
```

2. **Add the numbers.** Start from the rightmost column:
- In the thousandths place: \( 0 + 5 = 5 \)
- In the hundredths place: \( 0 + 1 = 1 \)
- In the tenths place: \( 0 + 0 = 0 \)
- In the units place: \( 4 + 3 = 7 \)
- In the hundreds place: \( 1 + 0 = 1 \)

So, the sum is:
```
154.000
+ 3.015
__________
157.015
```

### Step 2: Subtract \( 14.237 \) from \( 157.015 \)

1. **Align the numbers by their decimal points:**
```
157.015
- 14.237
__________
```

2. **Subtract the numbers.** Start from the rightmost column:
- In the thousandths place: \( 5 - 7 \) (we need to borrow)
- Borrow from \( 1 \) (which becomes \( 0 \)), making \( 5 \) into \( 15 \). So, \( 15 - 7 = 8 \).
- In the hundredths place: \( 0 - 3 \) (we need to borrow)
- Borrow from \( 7 \) (which becomes \( 6 \)), making \( 0 \) into \( 10 \). So, \( 10 - 3 = 7 \).
- In the tenths place: \( 0 - 2 \) (we need to borrow)
- Borrow from \( 6 \) (which becomes \( 5 \)), making \( 0 \) into \( 10 \). So, \( 10 - 2 = 8 \).
- In the units place: \( 7 - 4 = 3 \).
- In the hundreds place: \( 1 - 1 = 0 \).

So, the result of the subtraction is:
```
157.015
- 14.237
__________
142.778
```

### Final Answer:
The final result of \( 154 + 3.015 - 14.237 \) is \( 142.778 \).

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