1. what is the value of 85(33.22) - 33(22.85)?
2. compute (1992 - 1992)(1992-1992)
3. denver had a high temperature of 18°c and a low of -50c the same day. by how many
degrees did the high temperature exceed the low temperature?
4. evaluate 3 + (-9) - (-5)
5. ifx and y are numbers such that y-x= 7, what is the value of x-y?
6. compute 100 - 2 + 101- 4 + 102 - 6 + 103 - 8 + 104 - 10
7. compute (1901 + 1902 1903 + + 1993) - (101 +102 + 103 + + 193)
8. by how much does the sum 19 +28+37 +46 +55 + + 64 + 73 +82 +91 exceed the
sum 18+ 27 +36 +45 +54 +63 + 72 +81 + 90
9. compute 1990 - 1991 - 1989 1990
10. the sum of the first 100 even numbers is how much more than the sum of the first 100
odd numbers?
11. compute 998 23.