Example: Counting up from 2, which number comes next?
Count to 2 and then one more (0, 1, 2, 3, ...). The number that comes after 2 is 3.
2
1
3
Grades:
K
Example: In the number 39, which digit is in ones place?
6
3
9
Grades:
K
Example: 1, __ , 3, 4, 5; mean=3 Step 1: Let N be the missing number. Step 2: We know, Mean = (Sum of all numbers)/(Number of numbers); Therefore, Sum of all numbers = Mean x Number of numbers → 1 + N + 3 + 4 + 5 = 3 x 5 → N + 13 = 15 → N = 15-13 → N = 2