Directions: Use the whole numbers 1 through 20, at most one time each, and fill in the blanks to create equivalent expressions.

### Hint

### Hint

What types of numbers are easy to arrange into products?

Source: Shaun Errichiello

Directions: Use the whole numbers 1 through 20, at most one time each, and fill in the blanks to create equivalent expressions.

What types of numbers are easy to arrange into products?

Source: Shaun Errichiello

Tags 8.EE.1 DOK 2: Skill / Concept Shaun Errichiello

Directions: Make the largest (or smallest) absolute difference by filling in the boxes using the …

This problem was fantastic! My awesomely skilled sixth graders found seven more solutions to this problem! I wonder if we found them all? Thank you!

I see that some students have found more solutions. I thought I might share a solution found by one of my 8th graders.

(2^2)^5 = (2^6)^11/(2^7)^8 = 2^3 x 2^7 = 2^20/2^10

We found a mistake ( that is after I double checked. ugh!) change 2^3 x 2^7 to 2^1 x 2^9