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Tens and Ones - Worksheet 9 - 1st Grade

Hard

Identify the tens and ones place in two-digit numbers (Hard)

23 problems · 10-15 minutes · Skills: place value, number sense

About This Worksheet

This hard-level worksheet contains 23 problems designed for 1st Grade students practicing tens and ones. Hard worksheets feature challenging problems including multi-step questions, missing values, and real-world applications to push students further.

Place value is the backbone of our number system. Understanding tens and ones makes addition, subtraction, and working with larger numbers much easier.

How to Solve: Worked Example

Example Problem: Write 73 in expanded form: ___ + ___
Solution Steps:
  1. Break the number into its place values.
  2. 7 tens = 70.
  3. 3 ones = 3.
  4. 73 = 70 + 3.
Answer: 70 + 3
Tip: Expanded form shows the value of each digit. The tens digit times 10 gives the tens value.
1
Write 49 in expanded form: ___ + ___
2
Write 53 in expanded form: ___ + ___
3
Write 44 in expanded form: ___ + ___
4
What number has 5 tens and 9 ones?
5
In 56, what digit is in the tens place? What digit is in the ones place?
6
In 94, what digit is in the tens place? What digit is in the ones place?
7
Write 45 in expanded form: ___ + ___
8
What number has 8 tens and 6 ones?
9
In 73, what digit is in the tens place? What digit is in the ones place?
10
Write 70 in expanded form: ___ + ___
11
What number has 9 tens and 1 ones?
12
In 77, what digit is in the tens place? What digit is in the ones place?
13
In 93, what digit is in the tens place? What digit is in the ones place?
14
What number has 8 tens and 9 ones?
15
Write 79 in expanded form: ___ + ___
16
What number has 5 tens and 8 ones?
17
What number has 7 tens and 8 ones?
18
What number has 9 tens and 7 ones?
19
Write 96 in expanded form: ___ + ___
20
What number has 3 tens and 8 ones?
21
What number has 3 tens and 4 ones?
22
What number has 5 tens and 4 ones?
23
In 84, what digit is in the tens place? What digit is in the ones place?

Answer Key

1. 40 + 92. 50 + 33. 40 + 44. 595. tens: 5, ones: 66. tens: 9, ones: 47. 40 + 58. 869. tens: 7, ones: 310. 70 + 011. 9112. tens: 7, ones: 713. tens: 9, ones: 314. 8915. 70 + 916. 5817. 7818. 9719. 90 + 620. 3821. 3422. 5423. tens: 8, ones: 4

Frequently Asked Questions

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How many problems are on this worksheet?

This worksheet contains 23 problems. It typically takes 10-15 minutes to complete. An answer key with all solutions is included.