Skill: decimals-intro
Introducing Decimals Practice
Place value, fraction-decimal conversions, digit-by-digit comparisons, and money decimals.
How to enter answers
- Decimals: type
0.75(trailing zeros optional). - Fractions: type
7/20, in simplest form. - Comparisons: type
<,>, or=.
Problem types
Place value
What is the digit worth?
Example: the 2 in 5.28 → 0.2
Compare decimals
Digit by digit from the left.
Example: 0.6 __ 0.59 → >
Fraction to decimal
Rename as tenths or hundredths.
Example: 3/4 → 0.75
Decimal to fraction
Read it, write it, simplify.
Example: 0.35 → 7/20
Greatest decimal
Compare three at once.
Example: greatest of 0.4, 0.37, 0.402 → 0.402
Money decimals
Cents are hundredths of a dollar.
Example: 125 cents → $1.25
Common slip-ups
Longer means bigger
0.59 is not bigger than 0.6. Compare the tenths first: 6 > 5.
Misnaming the place
The first digit after the point is tenths, the second hundredths. Name it before writing the value.
Forgetting to simplify
0.35 = 35/100 must finish as 7/20.