The dot marks where the whole numbers end
Left of the dot is whole things. Right of the dot is part of one thing. In 3.7 you have 3 whole ones and 7 tenths of another.
Class 5 to 7 · 31 games
Decimals, explained with pictures
Another way to write the pieces of a whole, using a dot.
In everyday life: Prices like Rs 24.50, a height of 1.6 m, a cricket average of 38.75.
Each step right is ten times smaller
The first place after the dot is tenths, the next hundredths, the next thousandths. So 0.5 is much bigger than 0.05, even though the 5 looks the same in both.
Decimals and fractions are the same idea
0.25 and 1/4 are the same amount written two ways. You can always swap between them; sometimes one is just easier to work with.
A worked example
Which is bigger, 0.4 or 0.35?
0.4
0.35 has more digits, but that does not make it bigger. Compare place by place: 4 tenths beats 3 tenths, so 0.4 wins.
Words to know
- decimal point
- The dot that separates whole ones from parts of one.
- tenths
- The first place after the dot — one whole cut into ten.
- hundredths
- The second place after the dot — one whole cut into a hundred.
In the games
You will match decimals to fractions, compare two decimals, and put a set of decimals in order.
Skills
- Decimals and fractions · Class 6
- Compare decimals · Class 6
- Order decimals by size · Class 6
- Add, subtract and multiply decimals · Class 6
By class
Class 5 decimals (7) · Class 6 decimals (21) · Class 7 decimals (3)
Practise decimals in Tivumo
No download, no account for your child. Classes 3 to 12, more than 1,000 games.