Place Value: Tens and Ones — Answer Key
Part A: Expanded Form
Write the missing number on each line.
1. 3 tens and 5 ones = 35.
3 tens = 3 x 10 = 30, plus 5 ones = 35.
2. The number 42 = 4 tens and 2 ones.
In 42, the tens digit is 4 and the ones digit is 2.
3. The number 67 = 6 tens and 7 ones.
In 67, the tens digit is 6 and the ones digit is 7.
4. 50 + 8 = 58.
5 tens = 50, plus 8 ones = 58.
5. The number 29 has 2 tens.
In 29, the tens digit is 2 and the ones digit is 9.
6. 70 + 3 = 73.
7 tens = 70, plus 3 ones = 73.
7. The number 81 = 8 tens and 1 one.
In 81, the tens digit is 8 and the ones digit is 1.
8. 40 + 6 = 46.
4 tens = 40, plus 6 ones = 46.
9. The number 94 has 9 tens and 4 ones.
9 tens = 9 x 10 = 90, plus 4 ones = 94.
Part B: Match the Number
Draw a line from each number to the matching tens and ones.
1.
24
→ 2 tens 4 ones
5 tens 1 one
38
→ 3 tens 8 ones
2 tens 4 ones
51
→ 5 tens 1 one
6 tens 7 ones
67
→ 6 tens 7 ones
3 tens 8 ones
24 has 2 tens and 4 ones. 38 has 3 tens and 8 ones. 51 has 5 tens and 1 one. 67 has 6 tens and 7 ones.