divisibility test cube and square numbers Flashcards

1
Q

what is 1 cubed

A

1

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2
Q

what is 2 cubed

A

8

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3
Q

what is 3 cubed

A

27

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4
Q

what is 4 cubed

A

64

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5
Q

what is 5 cubed

A

125

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6
Q

what is 6 cubed

A

216

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7
Q

what is 7 cubed

A

343

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8
Q

what is 8 cubed

A

512

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9
Q

what is 9 cubed

A

729

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10
Q

what is 10 cubed

A

1000

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11
Q

what is 13 squared

A

169

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12
Q

what is 14 squared

A

196

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13
Q

what is 15 squared

A

225

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14
Q

what is the dt for 2

A

last digits end in a 0 2 4 6 8

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15
Q

what is the dt for 3 and 9

A

sum of the digits is divisible by 3 or 9

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16
Q

what is the dt for 4

A

if the last two digits are divisible by 4

17
Q

what is the dt for 5

A

last digits end in 0 or 5

18
Q

what is the dt for 6

A

if they are divisible by 3 and 2

19
Q

what is the dt for 12

A

if its divisible by 3 and 4

20
Q

what is the dt for 7

A

double the last digit and sutract from the remaining number if divisible by 7 then the og number is too

21
Q

what is the dt for 8

A

if the number formed by the last 3 digits is divisible by 8

22
Q

what is the dt for 9

A

if the sum of the digits is divisible by 9

23
Q

what is the dt of 10

A

if the last digit is a 0

24
Q

what is the dt for 11

A

take the last digit and subtract it from the remaining number, if it is divisible by 11 then the og number is too