Open Middle®
Directions: Using the digits 0 to 9 at most one time each, place a digit in each box to create a true equation with the greatest possible product.
Hint
What two-digit numbers would be too low/high that when multiplied together would not make a three-digit product?
Answer
The greatest possible product found so far is 54 x 18 which equals 972 but there may be one even greater. Let us know in the comments what you find.
Source: Robert Kaplinsky
We found a higher product. 78 x 12 = 936
I found a higher answer 8712
It has to be 3 digits not 4
I found a higher product. 78 x 96 = 7488
My student found 13 x 74 = 962
Would this be ok because your answer has digits that were used in the problem.
most at ONE time u used 8 3 time 7 two time so……
most at ONE time u used 8 3 time 7 two time so……You know
97 & 86 gives a higher answer
My student and I found 18 x 54 =972 oh yea! We loved this one!
i fond a higher number 50 x 18=950
97×86 will create a larger number
i fond a higher number 50 x 18=950
We found 74×13=962
My 5th grade students solved this! 🙂
We found a solution of 83X12=996
Our class at FLEXSchool also got 972 = 18 x 54
Jaydon found 54*18=972 at Underwood School in Newton.
Our class at FLEXSCHOOL got 972 = 18 x 54 again, the very next period.
my amazing other class at FLEXSCHOOL also got 972 = 18 x 54 again, the very next period. sO HAHAHA INTERNET!
68 x 14 = 952 —- solved by one of my 5th grade students
78×12=936 and I loves it very fun
You used 3 eights and your product was a 4 digit number. It was supposed to be a 3 digit number.
52 x 18 = 936
This is so fun! I gave this to my students for a Friday Fun Challenge and these are the answers that we got without repeating digits…
936
962
972
910
nice, the biggest answers my class were 980 and 996
68 x 14 = 952
My fifth graders found 78 x 12 = 936
Nice problem but my kindergarteners found 68 x 14 = 952
5th grade students found: 98×10=980
my class found 83×12=996 but that was one of the ones i thought of too lol
We did the same
there is one greater 97 x 86 + 8342 or 98 x 76 + 8342
The product can only be a 3 digit number and it has digits that you used in the problem.
Also a bigger product will be 96×87=8352
We got 83×12=996
20 x 49 = 980
98 x 10 = 980
We discovered that 34 x 29 = 986 🙂
12 x 83 = 996
54 x 18 = 972 is the greatest possible result.
12 x 38 = 456 is the lowest possible result.
we did 11 x 11 = 121
the answer that we got was 82X11=902
I found 99 times 9l which is 9801
87×96=8352