Using A Calculator
Question 1:
6371
79.81854421123
Question 2:
8080
4
9.4809714806541
Question 3:
7.59
+
2.11
8.15
-
5.99
4.4907407407407
Question 4:
3.1
2
3.1
3
+
6.1
3
0.59972141326345