**Regroup to express the number in a different way.**
$9.486= 9 \text{ ones} + 4 \text{ tenths} + 8 \text{ hundredths} + 6 \text{ thousandths}$
$9.486= 7 \text{ ones} +$ [[☃ math-keypad 1]] $\text{tenths} + 8 \text{ hundredths} + 6 \text{ thousandths}$