Front

50, 60, 70, ___

Back

80

Front

___, 30, 40, 50

Back

20

Front

0, 10, ____, 30

Back

20

Front

74, ____, 78, 80

Back

76

Front

54, 56, ____, 60

Back

58

Front

What is a missing number?

Back

A missing number is a number that is not shown in a sequence but can be figured out based on the pattern of the other numbers.

Front

How do you find a missing number in a sequence?

Back

Look for the pattern in the numbers before and after the missing number.

Front

What comes after 10, 20, 30, ___?

Back

40

Front

What comes before 10, ___, 30, 40?

Back

20

Front

If the numbers are increasing by 5, what is the missing number in 5, 10, ____, 20?

Back

15