Doubles (twos)2 ones, 2 twos, 2 threes, 2 fours, 2 fives.....
For Example: 2 fours.... THINK: double 4 = 8 2 sevens....THINK: double 7 =14 7 twos... THINK: double 7 = 14 |
Double, Double (Fours)4 ones, 4 twos, 4 threes, 4 fours, 4 fives....
For Example: 4 sixes.... THINK: double 6= 12 double again = 24 4 eights.... THINK: double 8 =16 double again = 32 |
Double, Double, Double (Eights)8 ones, 8twos, 8 threes, 8 fours, 8 fives....
For Example: 8 sixes..... THINK: double 6 = 12 double again= 24 double again=48 8 threes...... THINK: double 3= 6 double again= 12 double again= 24 |