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GMAT Prep - Math
Number Properties
Question | Answer |
---|---|
Odd + or - Odd = | Even (ex: 5+5 = 10; 7-5 = 2) |
Even + or - Even = | Even (ex: 6-2 = 4; 8+6 = 14) |
Odd + or - Even = | Odd (ex: 7 - 2 = 5; 10+3 = 13) |
Odd X Odd = | Odd (ex: 3 X 3 = 9; 5 X 5 = 25) |
Even X Even = | Even (ex: 2 X 2 = 4; 4 X 4 = 16) |
Odd X Even = | Even (ex: 5 X 2 = 10; 6 X 3 = 18) |
For example, 9 is divisible by 3. In this example, the factor is ____. | 3 |
For example, 9 is divisible by 3. In this example, the multiple is ___. | 9 |
An integer is divisible by 2 if its last digit is divisible by _____. | 2(ex: 50/2 or 24/2) |
An integer is divisible by 3 if its digits adds up to a multiple of ___. | 3 (ex: 33/3; 36/3) |
An integer is divisible by 4 if its last two digits are a multiple of _____. | 4 (ex: 124/4, 164/4) |
An integer is divisible by 5 if its last digit is ________ | 0 or 5 |
An integer is divisible by 6 if it is divisible by _________. | 2 or 3 (ex: 18 (3*6, 9*2) |
An integer is divisible by 9 if its digits add up to the multiple of _____. | 9 (ex: 324, 666, 297) |