Open Middle®
Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the smallest possible decimal sum.
Hint
What is the smallest possible whole number the sum could be?
Answer
• 14/7 + 3/6 = 2.5
• 18/9 + 3/6 = 2.5
• 18/9 + 3/6 = 2.5
There may be more ways to get the sum, but I couldn’t find any more.
Source: Kari Frazier
I can confirm that 14/7 + 3/6 = 2.5 and 18/9 + 3/6 = 2.5 are the only two ways to get the sum 2.5 and that 2.5 is the lowest sum possible.
A student got 63/9 + 1/5 = 7.2 🙂
I got 14/5 + 7/2 = 6.3
04/5 +1/2 1.3
@ Hi
You used the number 1 twice
I think 14/7 + 3/6 = 2.5 because I’m better
it is 2.5
18/9 + 3/6 = 2.5 😉
21/7 + 4/8 = 3.5
So my inference of this equation, would be 14/7 + 3/6= 2.5 i hope my inference of this is right, please let me know if i had gotten this right or wrong!
the answer is 2.5
i got by dnzbsjn;lzKLX
Ms Mills 5th graders agree that 2.5 is the lowest possible sum! We had so much fun solving this problem! Lots of productive struggle!
this promblem is a let a bit tricky can I have help pllssss 1,2,3,4,5,6,7,8,9,10
14/ 7 + 3/6 =2.5
10/9 + 9/9= 2.1
10/9 + 2/8 = 1.11 + 0.25 = 1.36
10/9 + 2/8 = 1.11 + 0.25 = 1.36 The smallest number possible
Not exact.
01/2 + 3/9 = 0.5 + 0.33= 0.88
01/2 + 3/9 = 0.88
you used zero twice
14/7+3/6=2.5
12/3 + 4/5 = 4.8 because 12/3 = 4.Also 4
+ 4/5= 4 4/5 which is 4.8.
14/7+3/6=2.5