Place Value (Tens and Ones) — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. The number 56 has 5 tens.
In 56, the digit 5 sits in the tens place, so the number has 5 tens worth 50 altogether.
2. 4 tens and 3 ones is the same as 43.
4 tens equals 40, and 3 ones equals 3, so 40 + 3 = 43 — the 4 goes in the tens place and the 3 in the ones place.
3. The expanded form of 72 is 70 + 2.
Expanded form splits the number into its place values: 72 has 7 tens (70) and 2 ones (2), so 72 = 70 + 2.
4. 8 tens and 9 ones make 89.
To make 89, we need the tens digit to be 8 because 8 tens is 80, and 80 + 9 = 89.
5. The digit 6 in 63 is in the tens place.
In 63, the 6 is the first digit from the left, which is the tens place, so the 6 is worth 60.
6. The number 15 has 5 ones.
In 15, the digit 5 on the right is the ones digit, so the number has 5 ones.
7. 30 + 7 = 37.
30 is 3 tens and 7 is 7 ones, so 3 tens and 7 ones build the number 37.
8. The value of the 4 in 48 is 40.
The 4 in 48 sits in the tens place, so its value is 4 tens, which equals 40.
9. 5 tens and 0 ones make 50.
5 tens is 50 and with 0 ones it stays 50, so the tens digit must be 5.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
47
→ 4 tens 7 ones
4 tens 7 ones
82
→ 8 tens 2 ones
8 tens 2 ones
35
→ 3 tens 5 ones
3 tens 5 ones
60
→ 6 tens 0 ones
6 tens 0 ones
For each two-digit number, the first digit tells the tens and the second digit tells the ones — so 47 splits into 4 tens and 7 ones, 82 into 8 and 2, 35 into 3 and 5, and 60 has 6 tens with 0 ones left over.