# Math Accuplacer Practice

### 86 terms by acornell8317

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Math Accuplacer

### divisible by 3

if the sum of the digits is divisible by 3

Ex) 456 ---> 4+5+6=15, 15 is divisible by 3

### divisible by 4

if the number named by the last 2 digits is divisible by 4

Ex) 3936 is divisible by 4 because 36 is divisible by 4

### divisible by 6

if rules for 2 and 3 check out ---- 1) the number is even & 2) the sum of the digits is divisible by 3

### divisible by 8

if the number named by the last three digits is divisible by 8

Ex) 13802120 ---> 120/8 = 15

### divisible by 9

if the sum of the digits is divisible by 9

Ex) 3483 ---> 3+4+8+3=18, 18 is divisible by 9

### divisible by 11

if the difference between the sum of the even-place digits and the sum of the odd-place digits is a multiple of 11

Ex) 928,193,926 ---> odd sum (9+8+9+9+6=41) even sum (2+1+3+2=8) ---> 41-8=33, 33 is divisible by 11

### multiplying decimals

count the number of decimal places and add them

Ex) 45.67 x .987 (5 places) = 45.07629 (5 places)

### dividing decimals

move the decimal point in the divisor and the dividend the same number of places to get whole numbers

Ex) 23.1 / .004 ----> 23.1 x 1000 / .004 x 1000 ----> 23100/4 ---> 5775

.5 OR 50%

.25 OR 25%

.75 OR 75%

.2 OR 20%

.4 OR 40%

.6 OR 60%

.8 OR 80%

.16 OR 16 2/3%

.33 OR 33 1/3%

.6 OR 66 2/3%

.83 OR 83 1/3%

.125 OR 12 1/2%

.375 OR 37 1/2%

.625 OR 62 1/2%

.875 OR 87 1/2%

.0625 OR 6 1/4%

.1875 OR 18 3/4%

.3125 OR 31 1/4%

.4375 OR 43 3/4%

.5625 OR 56 1/4%

.6875 OR 68 3/4%

.8125 OR 81 1/4%

93 3/4%

= x²⁺³

### (x³) / (x²)

= x³⁻² OR 1 / x²⁻³

= x²⋅³

= (x³)(y³)

= (x³) / (y³)

= 1 / x³

= x^m

= 1 (x ≠ 0)

= x^(power/root)

4

8

16

32

64

128

256

512

1024

9

27

81

243

729

16

256

25

125

36

216

49

64

81

100

121

144

169

196

225

256

289

324

361

400

441

484

529

576

625

676

729

784

841

900

961

1024

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