Transcript Math Triumphs

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Solve.
DINNER Valerie’s family ordered a large pizza
for dinner. The pizza was cut into 12 pieces.
Valerie and her sister each had 2 pieces of
pizza and her mom and dad each had 3 pieces.
What fraction of the pizza was left?
Understand Read the problem. Write what you
know.
Valerie and her sister each had
2 pieces.
Her mom and dad each had
3 pieces.
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Plan Pick a strategy. One strategy is to draw a
picture.
Draw a circle divided into 12 equal
sections.
Shade in 4 sections to represent
the number of pieces Valerie and
her sister had and 6 sections to
represent the number of pieces
her mom and dad had.
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Solve The total number of sections in the circle is
12. This is the number for the whole. It is
the denominator of the fraction.
Count the number of unshaded sections in
the circle. This is the number for the part. It
is the numerator of the fraction.
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Check Look at the numbers in the problem. Does
the solution answer the question? Is it
reasonable?