1. Problem of the Day Problem of the Day Multiplication 76 - 77 next

2. Arrange the four dominoes to form a 3-digit and a 1-digit factor with their product. Think of each half of a domino as separate 1-digit number, but you cannot separate dominoes.

3. In order to solve my problem, I must arrange the dominoes so that I have four digits as factors and four digits as my product. I know that I must use two dominoes for my 3-digit factor and one digit factor. I also must use two dominoes for my four digit product. I cannot separate the dominoes. The digits on the dominoes are 4, 5, 1, 4, 2, 1, 3,5. next

4. After several attempts using trial- and-error, my answer would be 4,1,5 × 3 = 1,2,4,5. This answer is correct because 415 × 3 = 1,245. 451 × 4 does not equal 2,135 531 × 2 does not equal 4,145 145 × 3 does not equal 2,145 415 × 3 does equal 1,245 next

5. Answers: 415 × 3 = 1,245 4 1 5 × 3 1 2 4 5 = next