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# Forum: Pre-Algebra

Questions from "Pre-Algebra" classes.

1. ### Sticky: Read Before Posting

• Replies: 0
• Views: 17,143
Ted
11-14-2007, 09:47 PM
1. ### Have Solution for % Change, Unsure of Steps to Solve (a running coach)

• Replies: 3
• Views: 688
09-23-2018, 08:34 AM
2. ### expression for 29 using 1, 2, 3, 4, *, /, +, -, powers

• Replies: 15
• Views: 19,121
09-11-2018, 10:51 PM
3. ### Help me solve this (word problem): Club is going to rent a mammoth propane barbeque

• Replies: 4
• Views: 1,032
08-18-2018, 03:50 PM
4. ### Please help solve: 15 drops per min= 1cc. How many drops per minute is 2cc per hour?

• Replies: 1
• Views: 522
08-02-2018, 03:26 AM
5. ### odd/even: Why the number half can't be odd number or even number?

• Replies: 11
• Views: 1,302
07-28-2018, 12:54 PM
6. ### How does negative sign turn neg. integer from inside parenthesis to pos.? -(-10) - 1

• Replies: 6
• Views: 900
07-22-2018, 10:19 AM
7. ### minus * minus: Why minus multply by minus equall to plus? Why: - x - = +?

• Replies: 10
• Views: 1,102
07-21-2018, 02:50 AM
8. ### question on percentage distribution: distributing \$10 between 3 people A, B, and C

• Replies: 7
• Views: 1,103
07-06-2018, 01:10 AM
9. ### how do i calculate 67% of an amount, only knowing the 67% result?

• Replies: 2
• Views: 528
06-26-2018, 09:29 AM
10. ### Is this interest prob. not solvable? Investment doubles in 10 yrs; find time to tripl

• Replies: 2
• Views: 553
06-24-2018, 10:33 AM
11. ### Factors: A teacher writes a number on a whiteboard. He then produces a hat....

• Replies: 6
• Views: 1,418
06-23-2018, 05:49 PM
12. ### "Your electricity bill is £122.00 excluding a tariff for the last quarter...."

• Replies: 1
• Views: 473
06-22-2018, 12:13 PM
13. ### Percent change: A zoo has 4 giraffes, 3 lions, and 290 animals overall....

• Replies: 5
• Views: 976
06-19-2018, 10:06 AM
14. ### wood chips: 282.8 grams of chips in sample, baked for 1 hr; lost 11 gm water

• Replies: 4
• Views: 1,692
06-18-2018, 09:46 AM
15. ### proportion: A survey of car owners showed 5 out of 7 preferred to buy regular gas..."

• Replies: 6
• Views: 833
06-17-2018, 09:48 PM
16. ### BEDMAS incl. exponent: 9 x 6 / 2^3 / 4 = ...?

• Replies: 16
• Views: 1,446
06-11-2018, 01:33 PM
17. ### Simplification of 4[(.5)^4 * (.6)^3]+4[(.5)^4 * (.6)^3 * (.4)] = 4(.3)^3 * (.7)

• Replies: 4
• Views: 768
05-28-2018, 05:30 PM

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