1,084.9 in expanded form

1000+80+4+0.9

Step-by-step explanation:

Keep in mind that expanded form means to expand the number by adding the individual places values to form a mathematical expression. In other words, numbers are expanded to show the value of each of its digits.

For the thousands place:

1,084.9 - --> 1,000.0

Hundreds place:

Because the value is 0, you needn't to include it in the expression.

Tens place:

1,084.9 - --> 80.0

Ones place:

1,084.9 - --> 4

Tenths place:

1,084.9 - --> 0.9

Answer: 1,000 + 800 + 40 + 9

Step-by-step explanation: 1 x1000 = 1,000 + 800 x 1 = 800 40 x 1 = 40 9x1=9

This was the way I learned it, so I hope it is correct.

P. S Tell me if I'm wrong!