Examples of Tens and Ones: Breaking Down Numbers 11-19

🔢 Quick Study Guide

• ➕ Numbers 11 to 19 are made up of one ten and some ones.
• 🖐️ The 'teen' in these numbers tells us there's a group of ten.
• ✏️ To understand them better, think of them as $10 + \text{ones}$. For example, $13 = 10 + 3$.
• 🧮 Each number has a 'tens' place and a 'ones' place. In 15, '1' is in the tens place and '5' is in the ones place.
• 💡 A helpful way to visualize this is with blocks: one long block of 10 and some single blocks for the ones.

📝 Practice Quiz

1. What does the '1' represent in the number 14?
   1. A) 1 one
   2. B) 1 ten
   3. C) 1 hundred
   4. D) 1 thousand
2. Which number has 1 ten and 7 ones?
   1. A) 16
   2. B) 15
   3. C) 17
   4. D) 18
3. If you have 10 blocks and add 2 more, what number do you have?
   1. A) 11
   2. B) 12
   3. C) 13
   4. D) 14
4. What number is made up of 1 ten and 9 ones?
   1. A) 18
   2. B) 19
   3. C) 20
   4. D) 17
5. Which of these shows 1 ten and 5 ones?
   1. A) 10 + 4
   2. B) 10 + 5
   3. C) 10 + 6
   4. D) 10 + 7
6. In the number 11, how many ones are there?
   1. A) 0
   2. B) 1
   3. C) 2
   4. D) 3
7. Which number is less than 16 but more than 14?
   1. A) 13
   2. B) 14
   3. C) 15
   4. D) 17