everything. Flashcards

1
Q

√4

A

2

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2
Q

1/2 = as a decimal

A

.5 or .50

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3
Q

.50 = as a percent

A

50%

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4
Q

1/3 = as a decimal

A

.33333

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5
Q

.33333 = as a fraction

A

33 1/3

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6
Q

2/3 = as a decimal

A

.66666

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7
Q

.66666 = as a fraction

A

66 2/3

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8
Q

33 1/3 = as a percent

A

33 1/3%

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9
Q

66 2/3 = as a percent

A

66 2/3%

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10
Q

1/4 = as a decimal

A

.25

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11
Q

.25 = as a percent

A

25%

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12
Q

Divisibility rules for 1

A

Any integer (not a fraction) is divisible by 1

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13
Q

Divisibility rules for 2

A

The last digit is even (0,2,4,6,8)

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14
Q

The sum of the digits is divisible by 3

A

Divisibility rules for 3

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15
Q

The last 2 digits are divisible by 4

A

Divisibility rules for 4

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16
Q

Divisibility rules for 8

A

The last three digits are divisible by 8

17
Q

Is even and is divisible by 3 (it passes both the 2 rule and 3 rule above)

A

Divisibility rules for 6

18
Q

The number is divisible by both 3 and 4 (it passes both the 3 rule and 4 rule above)

A

Divisibility rules for 12

19
Q

Divisibility rules for 9

A

The sum of the digits is divisible by 9

20
Q

The last digit is 0 or 5

A

Divisibility rules for 5

21
Q

Divisibility rules for 11

A

Add and subtract digits in an alternating pattern (add digit, subtract next digit, add next digit, etc). Then check if that answer is divisible by 11.

22
Q

Double the last digit and subtract it from a number made by the other digits. (We can apply this rule to that answer again)

A

Divisibility rules for 7

23
Q

Divisibility rules for 10

A

The number ends in 0