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4.OA.1 Interpret multiplication equation as a comparison
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Multiplicative Comparisons
picture
equation
family of numbers
comparison
statement
9, 3, 27
Andy is 3 years old. If Bobby is
9 times older, how old is he?
Directions
Andy has 3 times as many
pencils as Bobby. If Bobby has
9 pencils, how many does
Andy have?
Which number is being multiplied?
Which number tells how many times?
3 x 6 = 18 means that 18 is 6 times as many as 3
Create a Tree Map that shows:
1. the family of numbers
2. two multiplication equations
3. two comparison statements
4. two pictures to represent the statements
5. two story problems that are represented
by the equations
6 x 3 = 18 means that 18 is 3 times as many as 6
4.OA.1 Interpret a multiplication
equation as a comparison.
a is n times as much as b
or
a is b times as many as n
a = n x b
or
a = b x n