Math worksheet for practicing place value by breaking numbers into tens and ones.

To solve these problems, we need to break each number down into its Tens and Ones.

* The Tens digit is the first number (on the left). It tells us how many groups of ten are in the number.
* The Ones digit is the second number (on the right). It tells us how many single units are left over.

Let's go through them one by one:

1. 35: The 3 is in the tens place, and the 5 is in the ones place.
* 3 Tens & 5 Ones
2. 28: The 2 is in the tens place, and the 8 is in the ones place.
* 2 Tens & 8 Ones
3. 11: The 1 is in the tens place, and the 1 is in the ones place.
* 1 Ten & 1 One
4. 66: The 6 is in the tens place, and the 6 is in the ones place.
* 6 Tens & 6 Ones
5. 42: The 4 is in the tens place, and the 2 is in the ones place.
* 4 Tens & 2 Ones
6. 84: The 8 is in the tens place, and the 4 is in the ones place.
* 8 Tens & 4 Ones
7. 58: The 5 is in the tens place, and the 8 is in the ones place.
* 5 Tens & 8 Ones
8. 79: The 7 is in the tens place, and the 9 is in the ones place.
* 7 Tens & 9 Ones
9. 5: This is a single-digit number. There are no tens, just 5 ones.
* 0 Tens & 5 Ones
10. 18: The 1 is in the tens place, and the 8 is in the ones place.
* 1 Ten & 8 Ones

Final Answer:
35 = 3 TENS & 5 ONES
28 = 2 TENS & 8 ONES
11 = 1 TEN & 1 ONE
66 = 6 TENS & 6 ONES
42 = 4 TENS & 2 ONES
84 = 8 TENS & 4 ONES
58 = 5 TENS & 8 ONES
79 = 7 TENS & 9 ONES
5 = 0 TENS & 5 ONES
18 = 1 TEN & 8 ONES