Choose the correct answer to the following exercise:
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Choose the correct answer to the following exercise:
To avoid confusion, we will first add the digit 0 to the number 6.4 as follows:
Now let's solve the exercise in order:
We'll start by adding the hundredths after the decimal point:
We'll then add the tenths after the decimal point:
Finally, we will add the units before the decimal point:
Finally, calculate as follows:
7.42
Choose the correct writing form:
Adding zero makes 6.40 so both numbers have the same decimal places. This helps you align the columns correctly: hundredths with hundredths, tenths with tenths.
Always add zeros as placeholders to make them the same length. For example: 3.5 + 2.47 becomes 3.50 + 2.47 for easier addition.
Start from the rightmost column (hundredths place) and work left, just like with whole numbers. This way you can properly handle any carrying.
The decimal point in your answer goes in the same position as the decimal points in the numbers you're adding. It lines up vertically!
Remember: each place is 10 times smaller as you move right.
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