Directions: Using the digits 1 to 9 at most one time each, fill in the boxes to make the biggest/smallest product.

### Hint

In order to make the biggest/smallest product, which numbers should we use?

### Answer

Biggest Product: (9+6)(8+7)

Smallest Product: (1+2)(3+4)

Smallest Product: (1+2)(3+4)

Source: Nanette Johnson

when it says biggest/smallest I assumed there would be an answer for the biggest and the smallest

Thank you for pointing that out. We will add the smallest product…how did you get your answer for the smallest? Did you get a smaller answer? =)

(5+4) (6+4)

(1+2)+(3+4)

(2+4)(6+8)

sorry I meant (1+2)(3+4)

(8+5)(4+5)

(1*8)(2*4)

(5+7)(8+6)=

12×14=168

(1+9)(2+8)

(1+2)(2+0)

(9+6)(8+7)

(1+2)(3+4)

(9+6)(8+7)

(9+6) + (8+7) = 30

(1+2) + (3+4) =10