Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5
Select the best answers.
20.39 + 33.63 + 28.06 + 42.91
23.59 + 34.94 + 25.48 + 9.07
19.72 + 15.98 + 39.92 + 19.80
6.60 + 16.50 + 23.72 + 27.99
15.14 + 9.55 + 43.89 + 28.59