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Place Value Grade 5

Place Value

digit Symbols used to show numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
place Where a digit sits. This place gives the number its value.
value The number a digit represents, which is determined by the place of the digit. (worth)
standard form A common way of writing a number with commas separating groups of three digits (period) starting from the right. Example: 3,458
expanded form A way to write a number that shows the place value of each digit. Example: 3,000 + 500 + 60 + 2
word form A way to write a number using words.
decimal Part of a whole number written to the right of the ones place and a decimal point.
equivalent decimals Decimals that name the same amount. Example: 0.7 = 0.70
addends Numbers to be added.
sum The answer to an addition problem.
difference The answer to a subtraction problem.
minuend The number from which another is to be subtracted. (the "start with" number)
subtrahend The number to be subtracted.
Commutative Property of Addition The order of addends can be changed and the sum remains the same. Example: 3+7 = 7+3
Associative Property of Addition Addends can be regrouped and the sum remains the same. Example: 1 + (3+5) = (1+3) + 5
compatible numbers Numbers that are easy to compute with mentally.
compensation Adjusting one number of an operation to make computations easier and balancing the adjustment by changing the other number. Example: 6 + 9 can be adjusted to 5 + 10
rounding A process that determines which multiple of 10, 100, 1,00 etc., a number is closest to.
period A group of 3 digits in a number.
factor Numbers to be multiplied
product The answer to a multiplication problem
base The number to be repeatedly multiplied
exponent The number that tells you how many times to multiply the base number
exponent operations Repeated multiplication 10 x 10 x 10 x 10
Created by: mrszmath