Understand the rule first
Compare from the first letter and move right only while letters match. A shorter word comes first when it is the complete beginning of a longer word.
Order words by comparing one letter at a time.
Compare from the first letter and move right only while letters match. A shorter word comes first when it is the complete beginning of a longer word.
Sorting by word length or scanning later letters before finding the first difference.
Reusable method: Mark the first position at which the words differ.Find the first differing letter after ap.
Answer A: apple, apply, apron
Apple precedes apply because e comes before y; both precede apron because p comes before r at the third letter.
Quick method: Mark the first position at which the words differ.
Compare the first letter that differs after trai or tra.
Answer B: trail
Trail, train and trait begin trai; l comes before n and t, while trai comes before tray.
Quick method: Mark the first position at which the words differ.
A complete shorter prefix comes before its longer forms.
Answer C: car, card, care, cargo
Car comes first, followed by card, care and cargo because d, e and g are in that order.
Quick method: Mark the first position at which the words differ.
Compare the third letter after ba.
Answer D: ball
The third letters are d, g, k and l; l comes last, so ball is last.
Quick method: Mark the first position at which the words differ.
Compare the letters after kn, remembering that a whole prefix comes first.
Answer A: knee, kneel, knew, knife
Knee comes before kneel as its prefix; knew follows because e precedes w, and knife follows because e precedes i.
Quick method: Mark the first position at which the words differ.
Compare the fourth letter after blo.
Answer A: bloom, blouse, blow
The fourth letters are o, u and w, so bloom, blouse, blow is correct.
Quick method: Mark the first position at which the words differ.
Compare the fourth letters.
Answer B: crane
The fourth letters are s, n, t and w; n comes first, so crane is first.
Quick method: Mark the first position at which the words differ.
A whole prefix comes before longer words; then compare the fifth letter.
Answer C: mist, mistake, mister, misty
Mist comes first, followed by mistake, mister and misty because a, e and y are in order.
Quick method: Mark the first position at which the words differ.