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Chapter 9
Multiply by a Two-Digit Number
9
Mathematics
4th Grade
11/15/2011

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Term
array
Definition
an arrangement of objects or pictures in equal columns and rows
Term
factors
Definition
numbers that when multiplied give a product
Term
product
Definition
answer to a multiplication problem
Term
partial product
Definition
is a part of the total product
Term
multiple
Definition
a number that is the product of the given number and another number
Term
estimate
Definition
a number close to an exact amount; to find about how much
Term
pattern
Definition
a series of numbers, pictures, or objects that repeat according to a rule
Term
compatible numbers
Definition
numbers that are close to the original number and easy to work with mentally
Term
guess and check
Definition
guess possible answers and then check to see if they are correct until you find the solution
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