Real-world examples of teen numbers as '10 and some ones'

📚 Quick Study Guide

• ➕ Teen numbers are the numbers 11, 12, 13, 14, 15, 16, 17, 18, and 19.
• ➗ Each teen number can be broken down into '10 and some ones'. For example, 13 is '10 + 3'.
• 💡 Understanding this concept helps with addition and subtraction.
• 🖐 Think of your fingers! 10 fingers plus some extra ones.
• 📝 We can represent this with math equations: $11 = 10 + 1$, $12 = 10 + 2$, and so on.
• 🍎 Real-world examples include having 15 apples (a group of 10 and 5 more), or 18 crayons (a set of 10 and 8 extras).

➕ Practice Quiz

1. What is the '10 and some ones' representation of the number 14?
   1. 10 + 2
   2. 10 + 3
   3. 10 + 4
   4. 10 + 5
2. If you have a group of 10 pencils and 6 more pencils, how many pencils do you have in total?
   1. 14
   2. 15
   3. 16
   4. 17
3. Which equation shows the '10 and some ones' way to make 17?
   1. 9 + 8 = 17
   2. 10 + 7 = 17
   3. 12 + 5 = 17
   4. 11 + 6 = 17
4. Mia has 10 stickers on one page and 2 stickers on another page. How many stickers does she have altogether?
   1. 10
   2. 11
   3. 12
   4. 13
5. What number is represented by '10 + 9'?
   1. 18
   2. 19
   3. 20
   4. 21
6. Ben has a bag with 10 marbles and 5 more marbles outside the bag. How many marbles does Ben have?
   1. 12
   2. 13
   3. 14
   4. 15
7. Which number can be described as '10 and 8 more'?
   1. 16
   2. 17
   3. 18
   4. 19