Track quiz
Eleven ideas, eleven checks. The table sits first, so you can look back.
| Idea | How it goes |
|---|---|
| Make a tenth | Cut one whole into ten equal parts. |
| Keep splitting | A tenth holds ten hundredths. A hundredth holds ten thousandths. |
| Read it out | Wholes on the left, parts of one on the right. |
| Find its spot | A decimal with parts lies between two whole numbers. |
| Compare two | Compare wholes, then tenths, then hundredths, then thousandths. |
| Swap the name | The column name is the fraction. |
| Add or subtract | Points under points. An empty column gets a zero. |
| Change the unit | Small to big, divide by the count. Big to small, multiply. |
| Whole plus part | A decimal is its whole part plus a fraction. The bottom is 1, then a zero per digit after the point. |
| Borrow | Top digit too small? Borrow from the column on its left. If that column is 0, go one more column left. |
| Look-alike dots | A tenth of an hour is 6 minutes. A ball is not a tenth of an over. An inch is not a tenth of a foot. |
A ribbon end is 5 units and 6 tenths from zero. How is that written?
How many hundredths make one tenth?
Which writing holds 4 ones and 7 hundredths?
Between which two whole numbers does 5.3 sit?
Which is more, 1.45 or 1.54?
Which fraction names the same amount as 0.75?
What is 2.7 + 1.45?
A bottle holds 450 mL. How much is that in litres?
How is 6.04 written as a mixed fraction?
What is 8.3 − 4.58?
A film runs for 1.6 hours. How long is that in hours and minutes?
Part I, Chapter 3 is called A Peek Beyond the Point. Read it with a pencil and a ruler.
Next: Expressions using Letter-Numbers. A letter can stand in for a number you have not chosen.