11.   In the meantime, I try to calculate the number of newly minted leaves on the old maple tree just outside my office window.

12.   No one has even begun to calculate the number of television programs that may be showing up as reruns.

13.   She likes to read and calculate big numbers in her head.

14.   The Democrats used Education Department data to calculate the number of students in each state who are served by the programs that are now financed individually.

15.   The hard part is measuring the rise, calculating the number of steps needed and marking the layout on the boards.

16.   The number is calculated by subtracting the percentage of those whose outlook on the economy is negative from the percentage of those whose view is positive.

17.   The smaller electorate number was calculated with security organization figures.

18.   They cannot calculate the numbers without contacting individual schools.

19.   There is good data on this since World War II, when the Federal Reserve began calculating the numbers on an annual basis.

20.   White House officials may allow some states to include the cash value of food stamps when calculating the number of hours that welfare recipients must work to receive benefits.