How do you find the answer to 3.4 - 0.972

Add three zeroes at the end of 3.4 and subtract.

3.400 - 0.972

I'll be glad to check your answer.

Help I dont get how you got 2.428

you subtract:

3.400
-0.972
-------
2.428

check:

0.972
+2.428
------
3.400

To find the answer to the subtraction problem 3.4 - 0.972, you simply subtract the second number from the first number. Here are the steps to calculate it:

Step 1: Write down the subtraction problem: 3.4 - 0.972.

Step 2: Align the numbers vertically, with the decimal points lined up.

3.4
- 0.972

Step 3: Subtract the numbers in the same column from right to left. Start with the ones place (rightmost column) and move towards the left.

- Subtract 2 from 4 (ones place): 4 - 2 = 2.

- Subtract 7 from 3 (tenths place): Since 7 is greater than 3, borrow 1 from the digit on the left (which is 4).
So, the 3 becomes 2 (3 - 1 = 2), and we add a decimal point after it.
Then subtract 7 from 12: 12 - 7 = 5.

- Subtract 9 from 2 (hundredths place): Since 9 is greater than 2, borrow 1 from the digit on the left (which is 2).
So, the 2 becomes 1 (2 - 1 = 1), and we continue with the subtraction.
Then subtract 9 from 12: 12 - 9 = 3.

Step 4: Write down the answers below each column.

3.4
- 0.972
--------
2.428

Therefore, the answer to the subtraction problem 3.4 - 0.972 is 2.428.