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Place Value Grade 5
Place Value
Term | Definition |
---|---|
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 |