1. If 1 ten remains from the number 63, you unbundle it. After combining with the original ones, how many ones do you have in total? ___
2. You have 2 leftover tens from the number 84. When you unbundle the tens and add them to the original ones, what is the total number of ones?
3. Suppose 4 tens are left over from the number 98. After unbundling them and combining them with the existing ones, you have a total of ___ ones.
4. When you unbundle 1 ten, how many ones do you get in exchange?
5. If 3 tens remain from the number 37, you unbundle them into ones. How many ones do you have in total after combining them? ___
6. To begin solving $84 \div 4$, you first share the 8 tens. How many tens will be in each of the 4 groups? ___ tens.
7. When you start to solve $52 \div 2$, what is the tens digit of the quotient?
8. When sharing the tens to solve $95 \div 4$, you find that each of the 4 groups gets 2 tens. How many tens are left over? ___ tens.
9. To begin solving $87 \div 3$, you share the 8 tens. Which statement correctly describes the result of this first step?
10. In the first step of calculating $78 \div 6$, you divide the tens. The number of tens in each group will be the tens digit of the final answer. What is this digit? ___