Patterns in Numbers

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

• 32, 62
• 42, 63
• 43, 63
• 42, 62

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

• 18,23
• 18, 24
• 17, 25
• 17, 24

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

• 37, 39
• 40, 45
• 39, 43
• 38, 41

How would you describe this pattern's rule?
65, 62, 59, 56, 53, 50

• Subtract 2
• Subtract 3
• Subtract 4
• Add 3

How would you describe this pattern's rule?
23, 29, 35, 41

• Subtract 6
• Add 6
• Subtract 5
• Add 4

How would you describe this pattern's rule?
16, 11, 6, 1

• Add 5
• Subtract 3
• Subtract 5
• Subtract 6

∎∆∆∎ΔΔ__

• ∎
• Δ

ΔοΔΔοΔΔΔ__

• ο
• Δ

7, 11, 15, 19  What is the 6th term in this sequence?

• 23
• 27
• 31
• 35

How many counters would come next?

• 5
• 7
• 9
• 11