Place Value: Tens and Ones — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort each number into the correct category.
Tens Digit Is Bigger
739184 Ones Digit Is Bigger
284639 Compare the tens digit and ones digit in each number. For example, in 73 the tens digit (7) is bigger than the ones digit (3). In 28, the ones digit (8) is bigger than the tens digit (2).
Part B: Fill in the Blank
Write the missing word or number on each line.
1. 57 = 50 + 7.
In expanded form, 57 is broken into 50 (5 tens) and 7 (7 ones). So 57 = 50 + 7.
2. The tens digit in 83 is 8.
The tens digit is the first digit in a two-digit number. In 83, the tens digit is 8.
3. 60 + 4 = 64.
60 is 6 tens and 4 is 4 ones. Adding them gives 60 + 4 = 64.
4. The number 45 has 5 ones.
In 45, the digit 5 is in the ones place, so there are 5 ones.
5. 9 tens and 6 ones = 96.
96 has 9 tens (90) and 6 ones. So 9 tens and 6 ones = 96.
Part C: True or False?
Read each statement. Circle True or False.
1. 35 is greater than 53.
True False
35 has 3 tens, while 53 has 5 tens. Since 3 tens is less than 5 tens, 35 is less than 53.
2. The number 17 has 1 ten and 7 ones.
True False
In 17, the digit 1 is in the tens place (1 ten = 10) and the digit 7 is in the ones place (7 ones). So 17 = 10 + 7.
3. 40 + 9 = 49.
True False
40 is 4 tens and 9 is 9 ones. When you add them, you get 49.
4. In the number 62, the 2 is in the tens place.
True False
In 62, the digit 2 is in the ones place, not the tens place. The digit 6 is in the tens place.