Question

Tính bằng cách hợp lý nhất

Answer 1

64.6+81.4+17.6

=6.(64+17)+81.4

=6.81+81.4

=81.(6+4)

=81.10

=810

Answer 2

g) Ta có: \(64\cdot6+81\cdot4+17\cdot6\)

\(=6\left(64+17\right)+81\cdot4\)

\(=81\cdot6+81\cdot4\)

=810

Answer 3

64.6+81.4+17.6

=6.(64+17)+81.4

=6.81+81.4

=81.(6+4)

=81.10

=810

Answer 4

g)64.6 + 81.4 + 17.6

= 6.(64+17)+81.4

=6.81 + 81.4

= 81.(6+4)=81.10 = 810