Menu
Math workbook

Place Value: Tens and Ones

Grades K–2Level 1
Cover of Place Value: Tens and Ones

About this book

Bundle it, build it, compare it.

Four short modules help young learners bundle ten ones into a ten, read and build two-digit numbers, compare them tens first, and find ten more and ten less. Every module follows the same seven LessonCrest steps, with help that fades as confidence grows.

  • Bundle sticks into tens and count by tens
  • Base-ten blocks, place-value charts and expanded form
  • Compare with >, < and = by looking at tens first
  • Ten more, ten less, one more and one less
  • Mixed review, extra practice and an exit check
  • Answers that explain why, with help for common mistakes

Look inside

Page 5 of Place Value. Step 2, Learn It: Ten ones make one ten
View page 5 larger
Page 6 of Place Value. Step 3, See It: See it: bundle 23 sticks
View page 6 larger

What this book covers

Covered

What this book covers: bundling ten ones into one ten, two-digit numbers with sticks, base-ten blocks and place-value charts, comparing with >, < and =, and finding ten more, ten less, one more and one less.

Not covered

Not covered here: hundreds, and adding or subtracting two-digit numbers with regrouping (they come later in the series).

Before you start, you should be able to

  • Count objects to 20.
  • Read the numbers to 20.
  • Make a group of ten.

Things to have

Real straws with rubber bands, or snap cubes in towers of ten, help a lot.

Notice

Pictures in this book are simplified learning models. Check answers with the explanations at the back of the book.

The steps in this book

How the steps work
  1. Step 1: Get Ready

    Check the skills you need before you begin. If something feels tricky, an adult can help you start in the right place.

  2. Step 2: Learn It

    Read a short, clear explanation of the new idea and the words that go with it.

  3. Step 3: See It

    Watch the idea being used, one step at a time, in a worked example.

  4. Step 4: Try It Together

    Practice with prompts and help cues. The help gets smaller as you get stronger.

  5. Step 5: On Your Own

    Practice on your own with different kinds of questions, and explain your thinking.

  6. Step 6: Look Back

    Look back at earlier learning so it stays strong, then check where to go next.

  7. Step 7: Check and Fix

    Check your answers. Each answer explains why, names a common mistake, and shows how to fix it.

What is in the book

The modules

  1. Module 1: Bundle tensPages 5–14
  2. Module 2: Read and build two-digit numbersPages 15–24
  3. Module 3: Compare using place valuePages 25–34
  4. Module 4: Ten more and ten lessPages 35–44

Contents

  1. Readiness check, pp. 3–4. Before Module 1. Its table tells you where to start.
  2. Modules, pp. 5–44
  3. Checkpoints, pp. 14, 24, 34, 44. The last page of each module.
  4. Mixed review, pp. 45–48. Questions from across the book, mixed together.
  5. Exit check, pp. 49–50. A last check across the book.
  6. Reflect and repair, p. 51
  7. Try again, p. 52. Fresh questions like those in the exit check.
  8. Further practice, pp. 53–55. More pages of step 5, On Your Own.
  9. Extra practice, pp. 56–58
  10. Answers and explanations, pp. 59–68. Notes in this part are headed “Why”, “Common mistake”, “Help” and “Look for”.

Before this book

Counting to 20 was hard → Practice counting objects to 20 first (Number Sense book), then start page 5.

After this book

Next in the series: Addition within 20.

More books

All Grades K–2 booksAll math books