Transcript PowerPoint Review

Welcome to...
A Game of X’s and O’s
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Scoreboard
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X
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O
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Click Here if
X Wins
Click Here if
O Wins
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Estimate 24.9 + 70.32 + 5.29 by rounding to the
nearest whole number. What numbers did you
add? What is the estimated sum?
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25 + 70 + 5 = 100
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Use mental math to solve. Cari has $13.80 in her wallet
and 15.20 in her piggy bank. How much money does
she have in all?
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Cari has $29.00
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Tommy buys a shirt for $17.83 and a pair of jeans
for $28.99. How much more does he spend for
the pants?
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$11.16
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Miss Cruz has $45.73 in her wallet. Mrs. Mohr owes
her $9.45. How much money will Miss Cruz have
when Mrs. Mohr repays her?
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$55.18
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The Smith family spent $29 on dinner and
$8 on dessert. How much change do they
get from a $50 bill?
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$50 – 37 = $13.00
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The average books read per student in Mrs. Mohr’s class was 21.39. The
average books read per student in Miss Cruz’s class was 19.74 and the
average books read per student in Mr. Brum’s class was 19.87. On average,
how many more books did each student read in Mrs. Mohr’s class than Mr.
Brum’s class?
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The students in Mrs. Mohr’s class each read 1.52
more books than Mr. Brum’s class.
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Which two lengths of ribbon combined are less than 8
inches?
Red- 4.5 in.
Blue- 5.32 in.
Purple- 3.25 in.
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Red and purple
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Daniel has a rope that is 83.256 cm long.
What is 83.256 rounded to the nearest
hundredth?
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83.256 cm = 83.26 cm
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Sarah buys a yellow rose for $2.99, a pink carnation for $1.39,
and a white lily for $5.50. Round to the nearest dollar, write an
equation and solve to find out about how much Sarah spent.
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3+1+6=f
f = $10.00
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Carmen, Nicolas, and Luanne are each reading a different book of poetry.
Carmen’s book has 119 poems, Nicolas’s book has 383 poems, and Luanne’s
book has 17 poems. What is the total number of poems in the three books?
Write an equation and solve.
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111119 + 383 + 17 = x
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x= 489 poems
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Jane averages about 50.8 laps in the pool each week. Kari
averages about 28.3 laps in the pool each week. Round each of
these to the nearest whole number.
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50 and 28
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Round 6.58 to the nearest tenth.
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6.6
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Timmy bought a dictionary that contains 281,215
words. What is this number rounded to the nearest
ten thousand?
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280,000
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What is 41.539 rounded to the nearest
hundredth?
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41.54
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CCJJAnnie
drove 4.8 miles from her home to a friend’s
house. Then she drove 7.9 miles to a store. About how
many miles did she drive in all?
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About 13 miles
Home
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Chris and Mayana each have a paper route. Chris finished his route in 2.82
hours. Mayana finished her route in 1.28 hours. Estimate the difference in their
two finish times by rounding to the nearest whole number.
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2 hours
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Sarah needs to buy a galloon of milk for $3.98, a dozen eggs for
$2.75, and paper towels for $3.87. Sarah said she needs $10.00
to pay for all of the items. Is her answer reasonable?
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No,
$10.00
is
not
enough
money.
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There were 98 students from the fourth, fifth, and sixth grades on a field trip.
There were 26 students from the fourth grade and 33 students from the fifth
grade. How many students were there from sixth grade. Draw a picture, write
an equation, and solve.
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98 - 59 = f
f = 39