40 5 10 20 40 80 160.......double the number each time.
20 Each time it divides by 2... 160/2=80; 80/2=40; 40/2=20
10-20 16 20-30 4 30-40 _ 40-50 _ 50-60 _ 60-70 2
2, 4, 5, 8, 10, 20
10, 20, 30, 40, 50...
25 100 80
These may help you answer your questions: 1, 2, 4, 5, 8, 10, 20 and 40.
40 5 10 20 40 80 160.......double the number each time.
20 Each time it divides by 2... 160/2=80; 80/2=40; 40/2=20
Because 10 is a factor of 20 and 40. So any number which divides 10 evenly divides the factor of 20 or 40 evenly
40 because the are two halves in 1 so 2 times 20 which is 40.
Each number is multiplied by negative 2 to get the next number. 5 x -2 = -10 -10 x -2 = 20 20 x -2 = -40 -40x -2 = 80 So the next logical number in the series 5 10 20 -40 would be 80.
When it is a multiple of 10, such as 20, 30, 40, etc.
The LCM of 8, 10, and 20 is 40. Multiples of 8: 8, 16, 24, 32, 40, 48...... Multiples of 10: 10, 20, 30, 40, 50, 60...... Multiples of 20: 20, 40, 60, 80 The smallest number that all three numbers go into evenly is 40. Therefore the LCM of 8, 10, and 20 is 40.
40.
|-20 - (-40)| = 20 |-20 - 10| = 30 -20 is closer to -40 than 10.
40 is the outlier of10 15 10 20 10 20 40