Question

Subtract using tenths:
13.8 - 8.4

Answer 1

Subtract using tenths:
18.2 - 5.3

Answer 2

To subtract 13.8 and 8.4 using tenths, we can break the numbers down into tenths:

- 13.8 can be expressed as 138 tenths (since 13.8 = 13.0 + 0.8 = 130 tenths + 8 tenths).
- 8.4 can be expressed as 84 tenths (since 8.4 = 8.0 + 0.4 = 80 tenths + 4 tenths).

Now, we subtract the tenths:

138 tenths - 84 tenths = 54 tenths.

Now, we can convert 54 tenths back into a decimal:

54 tenths = 5.4 (since 54 tenths = 5 whole units and 4 tenths).

Therefore, \( 13.8 - 8.4 = 5.4 \).