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EXERCISE FORMAT:
23% + 52% = ?
FACT FAMILY:
23% + 52% = 75% (original)
52% + 23% = 75% (commutative)
75% - 23% = 52% (inverse operation)
75% - 52% = 23% (inverse operation)
CONCEPT MODEL:
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WORD PROBLEM:
23% of the
Starbursts in a package were red, and 52% were purple. What
percentage of the Starbursts were red or purple?
INVERSE WORD PROBLEM:
75% of the Starbursts
in a package are red or purple. If 23% of the Starbursts were red,
what percent are purple?
ALGORITHMS:
20% + 3%
+50% + 2%
70% + 5% =
75%
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