I Spy a Number

1
I Spy a Number

• M3N1. Students will further develop their
  understanding of whole numbers and decimals and
  ways of representing them.
• Identify place values from tenths through ten
  thousands.

2
I Spy a Number
I spy a number thats between 10 and 99.
Is it 43?
Guess Digits Correct Places Correct
43 1 0




No! One of the digits is either a 4 or a 3, but
its in the wrong place.
3
I Spy a Number
I spy a number thats between 10 and 99.
Is it 64?
Guess Digits Correct Places Correct
43 1 0
64 0 0



No! This lets us know that theres neither a 6
nor a 4 in the number.
4
I Spy a Number
I spy a number thats between 10 and 99.
Now I know that the correct digit is a 3.
Guess Digits Correct Places Correct
43 1 0
64 0 0



5
I Spy a Number
I spy a number thats between 10 and 99.
The 3 must be in the tens place.
Guess Digits Correct Places Correct
43 1 0
64 0 0



6
I Spy a Number
I spy a number thats between 10 and 99.
I also know that theres no 6 or 4.
Guess Digits Correct Places Correct
43 1 0
64 0 0



7
I Spy a Number
I spy a number thats between 10 and 99.
Is it 35?
Guess Digits Correct Places Correct
43 1 0
64 0 0
35 1 1


No! This lets us know that the number is between
30 and 39, but not 35.
8
I Spy a Number
I spy a number thats between 10 and 99.
Is it 37?
Guess Digits Correct Places Correct
43 1 0
64 0 0
35 1 1
37 1 1

No! This lets us know that the number is between
30 and 39.
9
I Spy a Number
I spy a number thats between 10 and 99.
Is it 39?
Guess Digits Correct Places Correct
43 1 0
64 0 0
35 1 1
37 1 1
39 2 2
Yes!!