1. ESTI - MYSTERIES Estimation Meets Math Mysteries Esti – Mystery #3
Steve Wyborney

2. Before seeing the clues, estimate how many objects are in each vase.
In this esti-mystery, you need to find 2 numbers. How many objects are in each vase?
As the clues appear, use the information to narrow the possibilities to a smaller set. Then use estimation to determine which of the remaining answers is the most reasonable.
Steve Wyborney

3. Clue #1 Clue #2 Clue #3 Clue #4 Clue #5
The combined number of objects in the two vases is less than 100.
Clue #2
One of the vases is holding exactly twice as many objects at the other vase.
Clue #2
Clue #3
Clue #3
The sum (of the numbers in the 2 vases) is an even number.
Clue #4
The 2 numbers are made of 4 unique digits. When you look at the 2 numbers you will see 4 different digits.
Clue #4
Clue #5
Clue #5
The digit 5 is not included
in either number.
Steve Wyborney

4. By combining the clues and estimation, you now have enough information to determine the answer.
Steve Wyborney

5. There are 2 mystery numbers. Click to see the answers.
The Reveal
There are 2 mystery numbers.
Click to see the answers.
The Reveal 32 64
The Reveal
Steve Wyborney

6. The Estimation Clipboard
Esti - Mysteries
Mystery #3
Click here (or on the image) to download more Esti – Mysteries.
Other Downloadable Resources
50 Splat! Lessons
(for PowerPoint)
20 Fraction
Splat! Lessons
(for PowerPoint)
80 Cube Conversations
Lessons
100 Subitizing Slides
&
10 Challenge Patterns
The Estimation Clipboard
Splat!
for Google Slides