Sample questions
1.70 + 3 =
2.50 + 4 =
3.What is the value of the digit 8 in 87?
4.60 + 9 =
5.What is the value of the digit 9 in 90?
6.10 + 4 =
7.40 + 8 =
8.What is the value of the digit 6 in 65?
Value of a digit, expanded form and building numbers.