Sums
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[hide]Sum of Natural Numbers
even number of terms = last term is even
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-8 | ספר_הכללים_במספר#zy8k | 77) 1, 2, 3, 4, 5, 6, 7, 8.
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-10 | קצת_מענייני_חכמת_המספר#mfsN | To know the numbers that are set in succession.
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sum/sum of natural numbers | 1-10 | ספר_מעשה_חושב#oa4i | Example: if you want to sum one, two, three, four, and so on up to ten, including ten.
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sum/sum of natural numbers | 1-10 | ספר_חשבון#QIjG | If a person says: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 - how much is the total?
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sum/sum of natural numbers | 1-10 | ספר_החשבון_והמדות#4op2 | Example: we wish to add the numbers that are from 1 up to 10 one by the one.
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sum/sum of natural numbers | 1-10 | ספר_החשבון_לאל_חצאר#4THN | When you are told: sum from one to ten in arithmetic succession.
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sum/sum of natural numbers | 1-10 | ספר_החשבון_והמדות#QkuV | Example: we wish to know how much is the sum of the numbers that are from 1 up to 10.
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-12 | ספר_חשבון#kTQb | If he continues his question until 12.
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sum/sum of natural numbers | 1-12 | ספר_המספר_/_אברהם_אבן_עזרא#xE2F | Example: we wish to know how much is the sum up to 12?
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sum/sum of natural numbers | 1-12 | מלאכת_המספר#V836 | Example: we wish to know the sum from one to 12.
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sum/sum of natural numbers | 1-12 | לקוטים_מספר_פראלוקא#GKFV | Example: we wish to know the sum of all the numbers from 1 to 12.
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-20 | ספר_חשבון#u3dY | If he continues his question until 20.
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sum/sum of natural numbers | 1-20 | עיר_סיחון#2heg | Question: we summed all the successive numbers from one to twenty and it is the sum. How much is the sum?
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-100 | ספר_חשבון#YfUq | If he continues his question until one hundred.
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odd number of terms = last term is odd
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-7 | לקוטים_מספר_פראלוקא#xJHj | If you want to sum from 1 to 7.
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sum/sum of natural numbers | 1-7 | ספר_הכללים_במספר#bsMG | 78) 1, 2, 3, 4, 5, 6, 7.
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sum/sum of natural numbers | 1-7 | ספר_חשבון#Hvdz | As the one who says: I continue my calculation until 7. How much is the total?
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-9 | ספר_חשבון#2b1t | If he continues his question until 9.
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sum/sum of natural numbers | 1-9 | ספר_החשבון_והמדות#vKJf | Another example for an odd [number of terms]: we wish to know how much is the sum of the numbers from 1 up to 9.
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-17 | ספר_חשבון#T2rf | If he continues until 17.
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Category | Comment | Link | Annotated text |
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sum/sum of natural numbers | 1-19 | ספר_חשבון#CIoT | If he continues until 19.
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Sum of Evens
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Category | Comment | Link | Annotated text |
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sum/sum of even numbers | 2-8 | ספר_הכללים_במספר#zzdV | 80) 2, 4, 6, 8 - that are evens.
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Category | Comment | Link | Annotated text |
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sum/sum of even numbers | 2-12 | ספר_חשבון#Gsfn | As 2, 4, 6, 8, 10, 12 - how much is the total?
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sum/sum of even numbers | 2-12 | מלאכת_המספר#voap | Example of this: if the last even number is 12.
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sum/sum of even numbers | 2-12 | ספר_דיני_ממונות#WfgD | 23) Question: if you want to know the sum of all the evens from 2 to 12.
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Category | Comment | Link | Annotated text |
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sum/sum of even numbers | 2-20 | ספר_חשבון#qYPE | If he says: I continued until twenty.
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Sum of Odds
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Category | Comment | Link | Annotated text |
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sum/sum of odd numbers | 1-9 | ספר_הכללים_במספר#djRx | 79) 1, 3, 5, 7, 9 - that are odds.
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sum/sum of odd numbers | 1-9 | ספר_חשבון#rGAn | As 1, 3, 5, 7, 9 - how much is the total?
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sum/sum of odd numbers | 1-9 | ספר_מעשה_חושב#Mp2k | Example: If you want to sum the successive odds up to nine including one.
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sum/sum of odd numbers | 1-9 | ספר_דיני_ממונות#2PiX | 22) Question: sum all the odds from 1 to 9.
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Category | Comment | Link | Annotated text |
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sum/sum of odd numbers | 1-11 | ספר_חשבון#NxSy | If he continues his question until 11.
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Category | Comment | Link | Annotated text |
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sum/sum of odd numbers | 1-13 | ספר_חשבון#2g6v | If he continues until 13.
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Sum of Powers of Two = Sum of Even-Times-Even Numbers
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Category | Comment | Link | Annotated text |
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sum/sum of powers of two | 1-32 | ספר_חשבון#y2at | As 1, 2, 4, 8, 16, 32.
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sum/sum of powers of two | 1-32 | ספר_חשבון#6kg5 | Example: one says: I summed the doubles from 1 to 32. How much is their sum?
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Category | Comment | Link | Annotated text |
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sum/sum of powers of two | 1-64 | ספר_חשבון#WJGn | If he says: I started from 1 and doubled until 64. How much is [their sum]?
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Category | Comment | Link | Annotated text |
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sum/sum of powers of two | 1-128 | ספר_חשבון#IUR1 | If he says: I started from one and doubled until 128. How much is [their sum]?
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sum/sum of powers of two | 1-128 | ספר_דיני_ממונות#29bw | 40) Question: if you want to know the sum of 1, 2, 4, 8, 16, and so on, each consecutive number is double the preceding number, and the last number is 128.
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Category | Comment | Link | Annotated text |
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sum/sum of powers of two | 4-32 | ספר_חשבון#ghpP | If he says: I started from 4 and doubled until 32. How much is their sum?
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Sum of Powers of Three
Category | Comment | Link | Annotated text |
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sum/sum of powers of three | 1-27 | ספר_חשבון#mIQm | As 1, 3, 9, 27.
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Sum of Powers of Four
Category | Comment | Link | Annotated text |
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sum/sum of powers of four | 1-16 | ספר_חשבון#aAn8 | As 1, 4, 16.
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