Solve the following exercise:
We have hundreds of course questions with personalized recommendations + Account 100% premium
Solve the following exercise:
To avoid confusion in solving the exercise, we will first add two zeros to the number 615.3 as follows:
Now let's solve the exercise in order:
Let's connect the thousandths after the decimal point:
Let's connect the hundredths after the decimal point:
Let's connect the tenths after the decimal point:
Finally, let's connect the whole numbers before the decimal point accordingly:
And we obtain the following:
738.721
Choose the correct writing form:
Adding zeros like helps you see each place value clearly! It doesn't change the number's value, but makes column addition much easier and prevents mistakes.
No problem! Always add zeros to make them the same length. For example: 123.421 has 3 decimal places, so 615.3 becomes 615.300.
Yes! Always line up decimal points vertically. Think of it like adding regular numbers - ones go under ones, tens under tens, and so on.
The decimal point in your answer goes directly below the decimal points in the numbers you're adding. It stays in the same column!
Add column by column from right to left:
Yes! Try adding in reverse order: . You should get the same answer: 738.721!
Get unlimited access to all 18 Decimal Fractions - Advanced questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime