everything. Flashcards
√4
2
1/2 = as a decimal
.5 or .50
.50 = as a percent
50%
1/3 = as a decimal
.33333
.33333 = as a fraction
33 1/3
2/3 = as a decimal
.66666
.66666 = as a fraction
66 2/3
33 1/3 = as a percent
33 1/3%
66 2/3 = as a percent
66 2/3%
1/4 = as a decimal
.25
.25 = as a percent
25%
Divisibility rules for 1
Any integer (not a fraction) is divisible by 1
Divisibility rules for 2
The last digit is even (0,2,4,6,8)
The sum of the digits is divisible by 3
Divisibility rules for 3
The last 2 digits are divisible by 4
Divisibility rules for 4
Divisibility rules for 8
The last three digits are divisible by 8
Is even and is divisible by 3 (it passes both the 2 rule and 3 rule above)
Divisibility rules for 6
The number is divisible by both 3 and 4 (it passes both the 3 rule and 4 rule above)
Divisibility rules for 12
Divisibility rules for 9
The sum of the digits is divisible by 9
The last digit is 0 or 5
Divisibility rules for 5
Divisibility rules for 11
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.
Double the last digit and subtract it from a number made by the other digits. (We can apply this rule to that answer again)
Divisibility rules for 7
Divisibility rules for 10
The number ends in 0
