Prefix Power
What does the prefix re- mean in the word "rewrite"
Again
Come up with a word that means “to write again”?
rewrite
What is 8 × 7?
56
Find the perimeter of a rectangle with sides 5in and 8in.
26 inches
A movie theater showed an 18-minute preview before the movie started.
If the entire time in the theater was 138 minutes, how long was the movie?
120 minutes
“The scientist carefully inspected the irregular pattern in the data.”
What does the prefix ir- tell you about the word irregular?
It means “not,” so irregular means “not regular.”
“The teacher encouraged students to be independent learners.”
What does the prefix in- most likely mean in the word independent?
Not
What is 72 ÷ 9?
8
Find the area of a rectangle with length 7in. and width 4in.
28 inches 2
A student had to rewrite 8 paragraphs because of mistakes.
Each paragraph had 12 sentences. How many sentences did the student rewrite?
96 Sentences
“The audience was impressed by the performer’s unbelievable tricks.”
Break apart the word unbelievable and explain its meaning using morphology.
un- = not
believe = think something is true
-able = able to be
Unbelievable means “not able to be believed.”
“The athlete showed great endurance during the marathon.”
Which meaning best matches the suffix -ance in the word endurance?
A. A person who
B. The act or state of
C. Without
D. Full of
B. The act or state of
Solve: 3 x 231
693
A square has a side length of 9. What is its perimeter?
36 units
A scientist recorded the temperature in an underwater lab every hour for 9 hours.
The temperature changed by 4 degrees each hour. What was the total change in temperature?
36 degrees
“The company’s transportation system became more efficient after the redesign.”
What does the root port mean in the word transportation?
To carry
“The disappearance of the files caused confusion in the office.”
Break apart the word disappearance and explain what it means.
dis- = away/not
appear = to be seen
-ance = state or condition
Disappearance means “the state of no longer being seen.”
Solve: 864 ÷ 8
108
Find the area of a rectangle with length 13 and width 6.
78 square units
A delivery company had to transport 264 boxes equally into 8 trucks.
How many boxes went into each truck?
33 boxes
“Because the instructions were misunderstood, the machine malfunctioned.”
Use morphology and context clues to explain the meaning of malfunctioned.
mal- = bad or wrong
function = work
Malfunctioned means “worked incorrectly” or “did not work properly.”
“The documentary explored the effects of overpopulation in large cities.”
Use morphology to determine the meaning of overpopulation.
over- = too much
population = number of people
Overpopulation means “too many people in one area.”
7 x 23
(7 x 20) + (7 x 3)
(140) + (21) = 61
A farmer is planting a new field of crops. The field is 9 yards x 34 yards.
Use the distributive property to determine the area of the new field
9 x 34
(9 x 30) + (9 x 4)
270 + 36 = 306
A machine began to malfunction and stopped making the correct number of parts.
It was supposed to make 48 parts each hour for 7 hours, but it only made half that amount.
How many parts did the machine actually make?
Answer:
48 × 7 = 336
Half of 336 = 168 parts