Question

tinh bang cach thuan tien nhat:

83,45 - 30,98 - 42,47

Answer 1

83,45-30,98-42,47

=83,45-(30,98+42,47)

=83,45-73,45

=10

chúc học tốt

Answer 2

83,45 - 30,98 - 42,47

=83,45 - [30,98 +42,47]

=83,45-73.45

=10

Answer 3

83,45 - 30,98 - 42,47

=83,45 - [30,98 +42,47]

=83,45-73.45

=10