2. Use base ten blocks and the clues to find the mystery numbers…

3.  My number is greater than 50.  My number is less than 70.  The digit in the ones place is a 4.  You will use exactly ten base ten blocks to build my number.  What’s the mystery number?

4.  The Mystery Number is  64!!

5.  Let’s try another one!!

6.  My number is between 20 and 30.  The digit in the tens place is smaller than the digit in the ones place.  You will use exactly eleven base-ten blocks to build my number.  What’s the mystery number?

7.  29!!!!  Let’s do another one!

8.  My number is greater than 30 but less than 40.  The digit in the ones and tens place is the same.  You will use exactly six base- ten blocks to build my number.  What’s the mystery number?

9.  33!!  Let’s do one more!

10.  My number is >than 30 and < 50.  The sum of the digits in the tens place and the digits in the ones place is 4.  What mystery number did you find?  Did anyone get a different number?

11.  31 or  40!  Great Job!!