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Use base ten blocks and the clues to find the mystery numbers…
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?
The Mystery Number is 64!!
Let’s try another one!!
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?
29!!!! Let’s do another one!
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?
33!! Let’s do one more!
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?
31 or 40! Great Job!!
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