Guided Practice: Tens and Ones
Understanding Tens and Ones
In this guided practice, we will work through place value problems step by step. Remember:
- Tens are groups of 10. We show them as tall sticks:
| - Ones are single items. We show them as dots:
*
Visual Key:
| = 10 (one ten)
* = 1 (one unit)
Worked Examples
Example 1: What number is this?
| | | * * * *
Step 1: Count the tens (tall sticks): 3 tens = 30
Step 2: Count the ones (dots): 4 ones = 4
Step 3: Add them together: 30 + 4 = 34
Example 2: Show 56 with tens and ones
Step 1: How many tens in 56? The digit in the tens place is 5, so we need 5 tens.
Step 2: How many ones in 56? The digit in the ones place is 6, so we need 6 ones.
Answer:
| | | | | * * * * * *
5 tens + 6 ones = 56
Practice Problems
Work through each problem step by step. Check your answers at the bottom.
Problem 1: What number is shown?
| | * * * * * * *
Tens: _____ Ones: _____ Number: _____
Problem 2: What number is shown?
| | | | | | * *
Tens: _____ Ones: _____ Number: _____
Problem 3: What number is shown?
| | | | * * * * * * * * *
Tens: _____ Ones: _____ Number: _____
Problem 4: Draw tens and ones for 45
How many tens? _____ How many ones? _____
Draw your answer: _____________________
Problem 5: Draw tens and ones for 73
How many tens? _____ How many ones? _____
Draw your answer: _____________________
Problem 6: Draw tens and ones for 91
How many tens? _____ How many ones? _____
Draw your answer: _____________________
Problem 7: Complete the place value chart
| Number | Tens | Ones |
|---|---|---|
| 38 | _____ | _____ |
| _____ | 5 | 2 |
| 84 | _____ | _____ |
Problem 8: Match the number to its picture
A. 25 B. 52 C. 32
1. | | | * * Match: _____
2. | | * * * * * Match: _____
3. | | | | | * * Match: _____
Problem 9: What is 10 more?
Start: 47 10 more = _____
Start: 63 10 more = _____
Start: 89 10 more = _____
Problem 10: What is 10 less?
Start: 55 10 less = _____
Start: 78 10 less = _____
Start: 30 10 less = _____
Answer Key
Click to reveal answers
Problem 1: 2 tens, 7 ones = 27
Problem 2: 6 tens, 2 ones = 62
Problem 3: 4 tens, 9 ones = 49
Problem 4: 4 tens, 5 ones: | | | | * * * * *
Problem 5: 7 tens, 3 ones: | | | | | | | * * *
Problem 6: 9 tens, 1 one: | | | | | | | | | *
Problem 7: 38 = 3 tens, 8 ones; 52; 84 = 8 tens, 4 ones
Problem 8: 1-C (32), 2-A (25), 3-B (52)
Problem 9: 57, 73, 99
Problem 10: 45, 68, 20
Next Steps
- If you got 8-10 correct, you are ready for the next lesson!
- If you got 5-7 correct, review the examples and try again.
- If you got fewer than 5 correct, go back to the Tens and Ones lesson for more practice.