Unit 10 Contents

Exploring Tenths with the Tenths Helper

Use skinnies and the Tenths Helper page from the Student Activity Book to answer Questions 15–18.

1. Cover your Tenths Helper with flats. How many flats did you use?
2. What number does this represent?
1. Place 10 skinnies on your Tenths Helper. Count by tenths as you place each skinny on the chart.
2. When you are skip counting by tenths, what number comes after 9 tenths? (Hint: There is more than one answer to this question.)
3. Continue placing skinnies on your Tenths Helper. What number will you say as you place the eleventh skinny? (Hint: There is more than one answer to this question.)
4. How many skinnies does it take to fill the Tenths Helper?
5. How many tenths are in two wholes?
17. Michael placed 14 skinnies on his Tenths Helper. Write the number this represents in more than one way.
1. Grace wanted to build the number 1.9 on her Tenths Helper using skinnies. How many skinnies will she need to build this number?
2. Grace decided to use both flats and skinnies to build this number. How many flats will she need? How many skinnies?