Number Patterns

What are the missing numbers in this pattern?
23, 33, ___, 53, ___, 73

What are the missing numbers in this pattern?
12, 15, ___, 21, ____, 27

What are the next 2 numbers of this pattern?
23, 27, 31, 35, ___, ___

Describe the pattern's rule for the sequence: 65, 62, 59, 56, 53, 50.

Describe the pattern's rule: 4, 11, 18, 25, 32, 39

Describe the pattern's rule: 23, 29, 35, 41

Describe the pattern's rule for the sequence: 16, 11, 6, 1

How many counters would come next?

320, 340, 360,
What is the next number in the pattern?

Number shown on the abacus in standard form