quick number crunching

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Slide 1: 

Quick number crunching davecoulson.150m.com dtcoulson@gmail.com

Slide 2: 

Fives 4 2 x 5

Slide 3: 

Fives 4 2 x 5 = 2 1

Slide 4: 

Fives 4 2 x 5 = 2 1 0

Slide 5: 

Fives 4 2 x 5 = 2 1 0 8 6 x 5

Slide 6: 

Fives 4 2 x 5 = 2 1 0 8 6 x 5 = 4 3

Slide 7: 

Fives 4 2 x 5 = 2 1 0 8 6 x 5 = 4 3 0

Slide 8: 

Fives 4 2 x 5 = 2 1 0 8 6 x 5 = 4 3 0 1 3 x 5

Slide 9: 

Fives 4 2 x 5 = 2 1 0 8 6 x 5 = 4 3 0 1 3 x 5 = 6 . 5

Slide 10: 

Fives 4 2 x 5 = 2 1 0 8 6 x 5 = 4 3 0 1 3 x 5 = 6 5

Slide 11: 

4 2 ÷ 5 Fives

Slide 12: 

4 2 ÷ 5 = 8 4 Fives

Slide 13: 

4 2 ÷ 5 = 8 . 4 Fives

Slide 14: 

4 2 ÷ 5 = 8 . 4 8 6 ÷ 5 Fives

Slide 15: 

4 2 ÷ 5 = 8 . 4 8 6 ÷ 5 = 1 7 2 Fives

Slide 16: 

4 2 ÷ 5 = 8 . 4 8 6 ÷ 5 = 1 7 . 2 Fives

Slide 17: 

4 2 ÷ 5 = 8 . 4 8 6 ÷ 5 = 1 7 . 2 1 3 ÷ 5 Fives

Slide 18: 

4 2 ÷ 5 = 8 . 4 8 6 ÷ 5 = 1 7 . 2 1 3 ÷ 5 = 2 6 Fives

Slide 19: 

4 2 ÷ 5 = 8 . 4 8 6 ÷ 5 = 1 7 . 2 1 3 ÷ 5 = 2 . 6 Fives

Slide 20: 

Fifteens 4 2 x 1 5

Slide 21: 

Fifteens 4 2 x 1 5 4 2 0

Slide 22: 

Fifteens 4 2 x 1 5 4 2 0 2 1 0

Slide 23: 

Fifteens 4 2 x 1 5 4 2 0 2 1 0 6 3 0

Slide 24: 

6 4 x 1 5 Fifteens

Slide 25: 

6 4 x 1 5 6 4 0 Fifteens

Slide 26: 

6 4 x 1 5 6 4 0 3 2 0 Fifteens

Slide 27: 

6 4 x 1 5 6 4 0 3 2 0 9 6 0 Fifteens

Slide 28: 

Fifteens 6 5 x 1 5

Slide 29: 

Fifteens 6 5 x 1 5 6 5 0

Slide 30: 

Fifteens 6 5 x 1 5 6 5 0 3 2 5

Slide 31: 

Fifteens 6 5 x 1 5 6 5 0 3 2 5 9 7 5

Slide 32: 

Twenty-fives 3 2 x 2 5

Slide 33: 

Twenty-fives 3 2 x 2 5 3 2 0 0

Slide 34: 

Twenty-fives 3 2 x 2 5 3 2 0 0 8 0 0

Slide 35: 

Twenty-fives 1 2 4 x 2 5

Slide 36: 

Twenty-fives 1 2 4 x 2 5 1 2 4 0 0

Slide 37: 

Twenty-fives 1 2 4 x 2 5 1 2 4 0 0 3 1 0 0

Slide 38: 

Twenty-fives 1 2 1 ÷ 2 5

Slide 39: 

Twenty-fives 1 2 1 ÷ 2 5 4 8 4

Slide 40: 

Twenty-fives 1 2 1 ÷ 2 5 4 .8 4

Slide 41: 

Twenty-fives 3 3 ÷ 2 5

Slide 42: 

Twenty-fives 3 3 ÷ 2 5 1 3 2

Slide 43: 

Twenty-fives 3 3 ÷ 2 5 1 . 3 2

Slide 44: 

Elevens 6 2 x 1 1

Slide 45: 

Elevens 6 2 x 1 1 6 2 6 2

Slide 46: 

Elevens 6 2 x 1 1 6 2 6 2 6 8 2

Slide 47: 

Elevens 3 7 x 1 1

Slide 48: 

Elevens 3 7 x 1 1 3 7 3 7

Slide 49: 

Elevens 3 7 x 1 1 3 7 3 7 4 0 7

Slide 50: 

Elevens 2 9 6 2 5 x 1 1

Slide 51: 

Elevens 2 9 6 2 5 x 1 1 2 9 6 2 5 2 9 6 2 5

Slide 52: 

Elevens 2 9 6 2 5 x 1 1 2 9 6 2 5 2 9 6 2 5 3 2 5 8 7 5

Slide 53: 

Fours 6 2 1 x 4

Slide 54: 

Fours 6 2 1 x 4 1 2 4 2

Slide 55: 

Fours 6 2 1 x 4 1 2 4 2 2 4 8 4

Slide 56: 

Sixes 3 1 2 x 6

Slide 57: 

Sixes 3 1 2 x 6 6 2 4

Slide 58: 

Sixes 3 1 2 x 6 6 2 4 1 8 7 2

Slide 59: 

Sixes 1 2 5 x 6

Slide 60: 

Sixes 1 2 5 x 6 2 5 0

Slide 61: 

Sixes 1 2 5 x 6 2 5 0 7 5 0

Slide 62: 

Refactoring 1 2 1 x 2 4

Slide 63: 

Refactoring 1 2 1 x 2 4 ( 1 1 x 1 1 x 2 4 )

Slide 64: 

Refactoring 1 2 1 x 2 4 ( 1 1 x 1 1 x 2 4 ) 1 1 x 2 6 4

Slide 65: 

Refactoring 1 2 1 x 2 4 ( 1 1 x 1 1 x 2 4 ) 1 1 x 2 6 4 2 6 4 2 6 4

Slide 66: 

Refactoring 1 2 1 x 2 4 ( 1 1 x 1 1 x 2 4 ) 1 1 x 2 6 4 2 6 4 2 6 4 2 9 0 4

Slide 67: 

Refactoring 7 5 x 1 2

Slide 68: 

Refactoring 7 5 x 1 2 ( 2 5 x 3 ) x (3 x 4 )

Slide 69: 

Refactoring 7 5 x 1 2 ( 2 5 x 3 ) x (3 x 4 ) 1 0 0 x 9

Slide 70: 

Refactoring 7 5 x 1 2 ( 2 5 x 3 ) x (3 x 4 ) 1 0 0 x 9 9 0 0

Slide 71: 

Refactoring 2 4 x 1 2

Slide 72: 

Refactoring 2 4 x 1 2 ( 2 x 1 2 ) x 1 2

Slide 73: 

Refactoring 2 4 x 1 2 1 4 4 x 2 ( 2 x 1 2 ) x 1 2

Slide 74: 

Refactoring 2 4 x 1 2 1 4 4 x 2 2 8 8 ( 2 x 1 2 ) x 1 2

Slide 75: 

Refactoring 1 8 x 3 5

Slide 76: 

Refactoring 1 8 x 3 5 9 x 7 0

Slide 77: 

Refactoring 1 8 x 3 5 9 x 7 0 6 3 0

Slide 78: 

davecoulson.150m.com dtcoulson@gmail.com