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Unit 1 Vocabulary

Horizontales
the set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n}
The number that is being divided
a method for estimating a number by increasing or retaining a specific place value digit according to specific rules and changing all trailing digits to zero
Pair of numbers easy to compute mentally
Answer to subtraction problem
Numbers multiplied together to find a product
Verticales
set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n}
Reasoning to determine an approximate value
Answers to an addition problem
a linear model used to illustrate number relationships
Answer to a division problem
The number the dividend is being divided by