In the number '978', which digit is in tens place?
The number '7'.
In the number '978', what is the value of the digit '9'?
It is '900'.
Solve the following: 61+38 = ______
The answer is '99'.
Solve the following: 532+7 = ______
The answer is '539'.
Solve the following: 643+9 = ______
The answer is '652'.
