Problem Solving Shapes & Number Before/ After

I have 4 equal sides. What shape am I?

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I am flat and round.

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It has 3 sides and 3 corners. What shape am I?

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Two sides are long and Two sides are short.

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I have 5 sides and 5 corners. What shape am I?

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What number comes before 3

• 5

• 2

• 1

What number comes after 9?

• 8

• 7

• 10

What is the missing number 11, ___13?

• 8

• 10

• 12

What number comes before 17?

• 16

• 12

• 18

What number comes after 20?

• 20

• 19

• 21