Needing some homework help ;)

dreamer • 27 October 2012 at 7:07 PM

In PreAlgebra, we get this homework every month called "problem of the month"... Mine is due on Wednesday, and I need help.

You need use use 6 10's, as well as addition/subtraction/division/multiplication+parentheses/brackets to make the numbers 1-20.

Examples:
0=10+10+10-10-10-10
1=10/10+10+10-10-10
2=10/10+10/10+10-10

Here are the ones I have so far:
3=[(10+10)+(10+10)-10]/10
4=[(10+10)/10]+[(10+10)/10]
5=(10+10+10+10+10)/10
10=(10-10)10+10-10+10
11=(10/10)+[(10-10)10]+10
12=[(10+10)/10]+10+10-10
13=[(10+10/10]+(10/10)+10
18=10+10-[(10/10)+(10/10)]
20=[(10+10)/10(10+10-10)

Can any of you guys help me out? I still need the following numbers:
6=
7=
8=
9=
14=
15=
16=
19=

I'd really appreciate some help with this. Thank you! 😃

duchess • 27 October 2012 at 7:21 PM

6= 10-(10+10+10+10)/10
😊

sunshinecat • 27 October 2012 at 7:38 PM

7 = (10x10) - (10+10+10) / 10
8 = 10 - (10+10)/10 x (10/10)
14 = (10+10+10+10) / 10 + 10
15 = (10+10+10) / [(10+10)/10]
19 = (10+10) - (10/10) x (10/10)

Just need 16 now.

dreamer • 27 October 2012 at 9:45 PM

@Sunshinecat My Math teacher said 16 was optional, so I'm good. 😊

@Duchess @Sunshinecat

Thank you! 😊