Question

4.5x1O.1简算

Answer 1

4.5x10.1
=4.5x(10+0.1)
=4.5x10+4.5x0.1
=45+0.45
=45.45

Answer 2

4.5×10.1
=4.5×10+4.5×0.1
=45+0.45
=45.45