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33 Cards in this Set
- Front
- Back
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multiply by 5 is the same as... |
x 10 / 2 |
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multiply by 25 is the same as... |
x 100 / 4 |
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multiply by 45 is the same as... |
x 90/ 2 |
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multiply by 75 is the same as... |
x 300 / 4 |
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multiply a # by 275 is the same as... |
# x 1100 / 4 |
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multiply a # by 125 is the same as... |
# x 500 / 4 |
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multiply by 22 is the same as... same for 33, 44, 55, etc. |
x 11 * 2 |
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777 x 11 = quick technique |
work it backwards 777 x 11 = (rest of first addition + 2nd term + 3rd term) & (1st term + 2nd term) & ones digit 7 = 7 7 + 7 = 14 7 + 7 + 1 = 15 7 + 1 = 8 8,547 |
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8² |
64 |
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9² |
81 |
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11² |
121 |
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12² |
144
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13² |
169 |
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14² |
196 |
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15² |
225 |
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16² |
256 |
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17² |
289 |
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18² |
324 |
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21² |
441 |
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22² |
484 |
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23² |
529 |
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24² |
576 |
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25² |
625 |
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Fraction, Decimal and Percentage 1/6 |
0.1666 16 and 2/3 |
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Fraction, Decimal and Percentage 5/6 |
0.83 83 and 2/3 |
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Fraction, Decimal and Percentage 1/8 |
0.125 12 and 1/2 |
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Fraction, Decimal and Percentage 3/8 |
0.375 37 and 1/2 |
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Fraction, Decimal and Percentage 5/8 |
0.625 62 and 1/2 |
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Fraction, Decimal and Percentage 7/8 |
0.875 87 and 1/2 |
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Fraction, Decimal and Percentage 1/9 |
11% |
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√2 |
1.4 |
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√3 |
1.7 |
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PI |
22/7 OR 3.14 |
