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# Bernard 5th Gr Math

### Unit 1 Vocab

TermDefinition
Estimation reasoning to determine an approximate value
Rounding 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
Compatible Numbers a method for estimating a group of numbers by slightly adjusting some or all of the numbers to allow for easy mental computation
Counting (natural) Numbers the set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n}
Whole Numbers the set of counting (natural) numbers and zero {0, 1, 2, 3, ..., n}
Equivalent Having the same value. Examples: 1 Dollar is equivalent to 100 cents 120 seconds is equivalent to 2 minutes
Standard Algorithm A way of doing multiplication by using partial products or multiplying in parts
Compensation a method for adjusting an estimate to draw closer to an exact calculation
Dividend the number that is being divided
Divisor the number the dividend is being divided by
Factor a number multiplied by another number to find a product
Fluency efficient application of procedures with accuracy
Front End Method a method for estimating a number in which the first digit of a number is retained and all remaining digits are changed to zero
Product the total when two or more factors are multiplied
Proficiency the mathematical ability to reason, apply, understand, compute, and engage in meaningful mathematics
Quotient the size or measure of each group or the number of groups when the dividend is divided by the divisor
Strip Diagram a linear model used to illustrate number relationships
Approximately Not exact, but close enough to be used.
Difference The result of subtracting one number from another. How much one number differs from another. Example: The difference between 8 and 3 is 5
Estimate To find a value that is close enough to the right answer, usually with some thought or calculation involved. Example: Alex estimated there were 10,000 sunflowers in the field by counting one row then multiplying by the number of rows.
Magnitude The size of something. The magnitude of a number (also called its absolute value) is its distance from zero, so • the magnitude of 6 is 6 • the magnitude of −6 is also 6
Multiple The result of multiplying a number by an integer (not by a fraction). Examples: • 12 is a multiple of 3, because 3 × 4 = 1 • But 7 is not a multiple of 3
Place Value The value of where a digit is in the number. Example: In 352, the 5 is in the "tens" place, so its place value is 10 Example: In 17.591, the 9 is in the "hundredths" place, so its place value is 0.01
Ratio Table Ratio tables show equivalent ratios between 2 quantities. You can create a ratio table by multiplying (or dividing) both quantities in the ratio by the same value to find an equivalent ratio. Can help you find equivalent ratios in order to solve problems
Remainder The number left over when a quantity cannot be divided evenly. A remainder can be expressed as an integer, fraction, or decimal.
Sum The result of adding two or more numbers. Example: 9 is the sum of 2, 4 and 3 (because 2 + 4 + 3 = 9).
Integer A number with no fractional part (no decimals). Whole positive and negative numbers.
Standard Notation Just the number as we normally write it. Example: 382 is in Standard Notation
Expanded Notation Writing a number to show the value of each digit. It is shown as a sum of each digit multiplied by its matching place value (ones, tens, hundreds, etc.) For example: 4,265 = 4 × 1,000 + 2 × 100 + 6 × 10 + 5 × 1
Created by: Loraine.Bernard