You can try something like this:
#trigger {You roll a (%d).} {
#if (%1>=90) {#echo between 90 and 100} {
#if (%1>=80) {#echo between 80 and 89} {
#if (%1>=70) {#echo between 70 and 79} {
#if (%1>=60) {#echo between 60 and 69} {
#if (%1>=50) {#echo between 50 and 59} {
#if (%1>=40) {#echo between 40 and 49} {
#if (%1>=30) {#echo between 30 and 39} {
#if (%1>=20) {#echo between 20 and 29} {
#if (%1>=10) {#echo between 10 and 19} {
#echo between 0 and 9
}
}
}
}
}
}
}
}
}
}
Is that what you were looking for?
Iljhar