GMAT - Arithmetic Word Scramble
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Question | Answer |
Define: Prime Numbers | A integer that is only divisible by itself and 1. Neither 0 nor 1 is prime numbers. |
Define: Divisor/Factor | A POSITIVE integer that can divide into another integer. |
Define: Multiple | ANY integer (negative or positive) can divide into another integer with no remainder. |
Define: Integer | ANY (positive or negative) “whole” number i.e. not a fraction or decimal. |
2x2= | 4 |
2x3= | 6 |
2x4= | 8 |
2x5= | 10 |
2x6= | 12 |
2x7= | 14 |
2x8= | 16 |
2x9= | 18 |
2x10= | 20 |
2x11= | 22 |
2x12= | 24 |
2x13= | 26 |
2x14= | 28 |
2x15= | 30 |
3x2= | 6 |
3x3= | 9 |
3x4= | 12 |
3x5= | 15 |
3x6= | 18 |
3x7= | 21 |
3x8= | 24 |
3x9= | 27 |
3x10= | 30 |
3x11= | 33 |
3x12= | 36 |
3x13= | 39 |
3x14= | 42 |
3x15= | 45 |
4x2= | 8 |
4x3= | 12 |
4x4= | 16 |
4x5= | 20 |
4x6= | 24 |
4x7= | 28 |
4x8= | 32 |
4x9= | 36 |
4x10= | 40 |
4x11= | 44 |
4x12= | 48 |
4x13= | 52 |
4x14= | 56 |
4x15= | 60 |
5x2= | 10 |
5x3= | 15 |
5x4= | 20 |
5x5= | 25 |
5x6= | 30 |
5x7= | 35 |
5x8= | 40 |
5x9= | 45 |
5x10= | 50 |
5x11= | 55 |
5x12= | 60 |
5x13= | 65 |
5x14= | 70 |
5x15= | 75 |
6x2= | 12 |
6x3= | 18 |
6x4= | 24 |
6x5= | 30 |
6x6= | 36 |
6x7= | 42 |
6x8= | 48 |
6x9= | 54 |
6x10= | 60 |
6x11= | 66 |
6x12= | 72 |
6x13= | 78 |
6x14= | 84 |
6x15= | 90 |
7x2= | 14 |
7x3= | 21 |
7x4= | 28 |
7x5= | 35 |
7x6= | 42 |
7x7= | 49 |
7x8= | 56 |
7x9= | 63 |
7x10= | 70 |
7x11= | 77 |
7x12= | 84 |
7x13= | 91 |
7x14= | 98 |
7x15= | 105 |
8x3= | 24 |
8x4= | 32 |
8x5= | 40 |
8x6= | 48 |
8x7= | 56 |
8x8= | 64 |
8x9= | 72 |
8x10= | 80 |
8x11= | 88 |
8x12= | 96 |
8x13= | 104 |
8x14= | 112 |
8x15= | 120 |
9x3= | 27 |
9x4= | 36 |
9x5= | 45 |
9x6= | 54 |
9x7= | 63 |
9x8= | 72 |
9x9= | 81 |
9x10= | 90 |
9x11= | 99 |
9x12= | 108 |
9x13= | 117 |
9x14= | 126 |
9x15= | 135 |
11x11= | 121 |
11x12= | 132 |
11x13= | 143 |
11x14= | 154 |
11x15= | 165 |
12x2= | 24 |
12x3= | 36 |
12x4= | 48 |
12x5= | 60 |
12x6= | 72 |
12x7= | 84 |
12x8= | 96 |
12x9= | 108 |
12x10= | 120 |
12x11= | 132 |
12x12= | 144 |
12x13= | 156 |
12x14= | 168 |
12x15= | 180 |
13x2= | 26 |
13x3= | 39 |
13x4= | 52 |
13x5= | 65 |
13x6= | 78 |
13x7= | 91 |
13x8= | 104 |
13x9= | 117 |
13x10= | 130 |
13x11= | 143 |
13x12= | 156 |
13x13= | 169 |
13x14= | 182 |
13x15= | 195 |
14x2= | 28 |
14x3= | 42 |
14x4= | 56 |
14x5= | 70 |
14x6= | 84 |
14x7= | 98 |
14x8= | 112 |
14x9= | 126 |
14x10= | 140 |
14x11= | 154 |
14x12= | 168 |
14x13= | 182 |
14x14= | 196 |
14x15= | 210 |
15x2= | 30 |
15x3= | 45 |
15x4= | 60 |
15x5= | 75 |
15x6= | 90 |
15x7= | 105 |
15x8= | 120 |
15x9= | 135 |
15x10= | 150 |
15x11= | 165 |
15x12= | 180 |
15x13= | 195 |
15x14= | 210 |
15x15= | 225 |
Divisibility rule of 2 | If the number's last digit is even. |
Divisibility rule of 3 | If the sum of the digits is divisible by 3. |
Divisibility rule of 4 | If the last two digits are divisible by 4. |
Divisibility rule of 5 | If the number ends in 0 or 5. |
Divisibility rule of 6 | If the number is even and the sum of the digits is divisible by 3. |
Divisibility rule of 8 | If the number is even when divided by 2 twice. |
Divisibility rule of 9 | If the sum of the digits is divisible by 9. |
Divisibility rule of 10 | If the number ends in 0. |
Divisibility rule of 25 | If the last two digits are divisible by 25 or are 00. |
Divisibility rule of 11 | If (sum of the odd digits) minus (sum of even digits) is divisible by 11 |
Divisibility rule of 12 | If divisibility rule 3 and 4 are true: -If the sum of the digits is divisible by 3. and -If the last two digits are divisible by 4. |
______?_______ ? | ___numerator___ denominator |
1/2 = | 0.5 |
1/3 = | 0.333.... |
1/4 = | 0.25 |
1/5 = | 0.20 |
1/6 = | .1667 |
1/7 = | 0.143 |
1/8 = | .125 |
1/9 = | .1111 |
Define: Least Common Multiple | The smallest non-zero number that two or more numbers are a multiple of. Procedure: Factor each number and multiple the highest exponent example of each factor against one another. |
Define: Greatest Common Factor | The largest number that divides into each of a given set of numbers. Procedure: Factor each number and multiple the factors they have in common against one another. |
Odd +/- Odd = | Even |
Odd +/- Even = | Odd |
Even +/- Even = | Even |
Odd x Odd = | Odd |
Odd x Even = | Even |
Even x Even = | Even |
Positive + Positive = | Positive |
Positive + Negative = | Positive or Negative |
Negative - Negative = | Negative |
Positive x Positive = | Positive |
Positive x Negative = | Negative |
Negative x Negative = | Positive |
-1^2= | 1 |
0^2= | 0 |
1^2= | 1 |
2^2= | 4 |
2^3= | 8 |
2^4= | 16 |
2^5= | 32 |
2^6= | 64 |
3^2= | 9 |
3^3= | 27 |
3^4= | 81 |
4^2= | 16 |
4^3= | 64 |
4^4= | 256 |
5^2= | 25 |
5^3= | 125 |
5^4= | 625 |
6^2= | 36 |
7^2= | 49 |
8^2= | 64 |
9^2= | 91 |
10^2= | 100 |
11^2= | 121 |
12^2= | 144 |
13^2= | 169 |
14^2= | 196 |
15^2= | 225 |
20^2= | 400 |
25^2= | 625 |
Define: Units Digit | The last digit in a number. |
Is zero even or odd? | Even |
How many decimal places will this problem result in? .00678 x 3.42 = | 7 decimal places |
How many decimal places will this problem result in? .0022 / .003 = | 1 decimal places |
What is the only even prime number? | 2 |
Are 0 and 1 prime numbers? | No |
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