# 5.3: Review of Twinning and Final < e > Deletion

Difficulty Level: At Grade Created by: CK-12

## Review of Twinning and Final <e> Deletion

1. The Twinning Rule. Unless it is the letter <x>, you twin the final consonant of a word that has one vowel sound and ends in the pattern CVC when you add a suffix that starts with a vowel:

run+n+ingcvc v\begin{align*} &\text{run} + \text{n} + \text{ing}\\ &\text{cvc} \quad \ \qquad \text{v}\end{align*}

Add the suffix to each of the following words. Remember the twinning rule:

Word + Suffix = New Word
tap + p + ing = tapping
trip + ed =
twig + s =
put + ing =
roast + er =
gyp + ed =
search + ed =
quiz + ing =
in + ing =
bar + ed =
gleam + ing =
wax + y =
tap + s =
up + er =

2. Rule for Deleting Silent Final <e>. If a word ends with a silent final <e> that shows that a vowel sound is long, you delete the silent final <e> when you add a suffix that starts with a vowel.

Add the suffix to each of the following words. Sometimes they will combine through simple addition, sometimes there will be twinning, and sometimes a final <e> will be deleted:

Word + Suffix = New Word
strike\begin{align*}\cancel{e}\end{align*} + ing = striking
tax + es =
move + ed =
twig + y =
decide + ed =
roast + ed =
president + s =
problem + s =
cut + er =
search + ing =
dim + est =
obey + ing =
fail + ed =
scrub + er =
succeed + ing =

3. Unless it is an <x>, you twin the final ______ of a word that has one ______ vowel sound and ends in the pattern ______ when you add a ______ that starts with a ______.

4. If a word ends with a silent final <e> that shows that a vowel sound is ______, you ______ the silent final <e> when you add a ______ that starts with a ______.

Word Venn. A Word Venn is an activity for helping you sort things out, or divide them into groups. Inside the circle, in the area marked ‘1’, you should put only words that contain examples of final <e> deletion. Outside the circle, in the area marked ‘2’, you should put only words that do not contain examples of final <e> deletion.

baredbarredtapedtappedwaxingsucceedingcutercutterdecidedobeyedremovingstriker\begin{align*} &\text{bared} \surd &&\text{tapped} &&\text{cuter} &&\text{obeyed}\\ &\text{barred} \surd &&\text{waxing} &&\text{cutter} &&\text{removing}\\ &\text{taped} &&\text{succeeding} &&\text{decided} &&\text{striker}\end{align*}

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