Here's the answer...
2. b. 8.91, 8.9, 8.19, 8.1, 8.098
c. 20.005, 20, 19.06, 2.05, 1.905
4. a. 18.05 + 56.95
For letter a, add the whole and decimal.
18 + 56 = 74
.05 + .95 = 1
74 + 1 = 75 For letter A is 75.
b. (23.202 + 10) + (0.839 + 5.5)
Look for the parenthesis.
23.202 + 10 = 33.202
0.839 + 5.5 = 6.339
33.202 + 6.339 = 39.541 for letter B is 39.541.
c. 36 - 19.83 = 16.17 is for C
d. 1.005 - 0.2 = 0.805 is for D
e. (12.78 + 0.02) + 88
12.78 + 0.02 = 12.8
12.8 + 88 = 100.8 is for E
If it's right, thank to me Hehehe...