2-1 Patterns and Inductive Reasoning

Find the next number in the sequence.
1, -1, 2, -2, 3, ___

• 4
• -4
• 3
• -3

Tags

CCSS.4.OA.C.5

What is a conjecture?

• A statement believed to be true based on observations.

• An example which disproves an hypothesis.

• The performance of tricks that are seemingly magical.

Find the next term in the sequence:
A, D, G, J, _____

• L
• M
• P
• K

Tags

CCSS.4.OA.C.5

Where would the next red square be?

• bottom left
• top right
• top left
• bottom right

Tags

CCSS.4.OA.C.5

How many counters would come next?

• 5
• 7
• 9
• 11

Tags

CCSS.4.OA.C.5

What number belongs in the blank?
18,24,___,36,42

• 28
• 31
• 30
• 35

Tags

CCSS.4.OA.C.5

Which is a counterexample to the following statement?

If an angle is obtuse, then it is $125\degree$ .

•  $90\degree$  

•  $57\degree$  

•  $160\degree$  

•  $180\degree$  

Tags

CCSS.HSG.CO.A.1

Which is a counterexample to the following statement?

If  $LM\cong MN$  , then  $M$   is the midpoint of  $LN$  .

• 
• 
• 
• None of these

Tags

CCSS.4.G.A.1

Which is a counterexample to the following statement?

If you add two numbers, then the sum is odd.

• 2+5=7

• 3+2=5

• 1+8=9

• 2+4=6

Tags

CCSS.7.NS.A.1

CCSS.7.NS.A.3

What is the next term in the sequence?

2, 5, 8, 11, 14, ...

• 17

• 15

• 20

• 18

Tags

CCSS.4.OA.C.5