Decimal Place Value

Standard Form to Expanded Form

100

Write the following in expanded form. 278.722

2x100+7x10+8x1+7x1/10+2x1/100+2x1/1000

200

Write in expanded form 36.489

3x10+6x1+4x1/10+8x1/100+9x1/1,000

300

Write in expanded form 3.05

3x1+5x1/100

400

Write in expanded form 1,235.97

1x1,000+2x100+3x10+5x1+9x1/10+7x1/100

500

Write in expanded form 243.9743

2x100+4x10+3x1+9x1/10+7x1/100+4x1/1,000+3x1/10,000

Expanded Form to Standard Form

100

Write in standard form 5x1+3x1/10+6x1/100

5.36

200

Write in standard form 2x100+3x10+4x1+5x1/10+4x1/100

234.54

300

8x100+7x1+9x1/10+7x1/100

807.97

400

4x10+8x1/100+9x1/1,000

40.089

500

3x100+7x1+9x1/1,000

307.009

Word form and Standard form

100

Write in word form 3.45

three and fourty-five hundredths

200

Write in standard form two hundred thirty-five and eight tenths

245.8

300

Write in word form 308.754

three hundred eight and seven hundred fifty-four thousandths

400

Write in standard form nine hundred one and 6 hundredths

901.06

500

Write in standard form six hundred twenty-three thousandths

.623