You could write the numbers in expanded form and word form.
Word form:
0.326 (three hundred twenty-six thousandths)
8.157 (eight and one hundred fifty-seven thousandths)
0.924 (nine hundred twenty-four thousandths)
1.075 (one and seventy-five thousandths)
Expanded form:
0.326 - (0 x 1) (3 x 1/10) (2 x 1/100) (6 x 1/1000)
8.157 - (8 x 1) (1 x 1/10) (5 x 1/100) (7 x 1/1000)
0.924 - (0 x 1) (9 x 1/10) (2 x 1/100) (4 x 1/1000)
1.075 - (1 x 1) (0 x 1/10) (7 x 1/100) (5 x 1/1000)
