## Friday, March 7, 2014

### How do You Evaluate

Describe how you use PBEMDAS to evaluate expressions and equations.  This week you need to write one equation that includes 6 of the 7 rules in the order of operations and explain step by step how you solve the problem.  You may use one of the math problems from this week's homework.  Remember to explain where you are in the steps and what you did to solve it.  Put your name at the end.

1. 9.6+[(3.1*2)-2.3]+4 to the power of 2
9.6+[6.2-2.3]+4 to the power of 2
9.6+3.9+4 to the power of 2
9.6+3.9+16
29.5
BRETT

2. 9.6-[(.6*4)+(8.9+8)] +8 to the power of 2
9.6-[2.4+16.9]+8 to the power of 2
9.6-19.3+64
9.7-73.3
63.6
Duncan Myer

3. 42.1-{(2.3*.9)+5.9}4 squared
42.1-{7.97}*4 squared
42.1-125.72
83.62
DJ

4. (24.1*7.9)+[4 divided by (2.4-1.7)]
190.39+ 4 divided by 0.7
190.39+5.71428571429
196.104285714
Alison

5. [(10*1.8)+(2.4/3)] / 2 +5^2=
[ 18 + .8 ] / 2+5^2=
18.8 /2 + 5^2=
18.8 /2 + 25 =
9.4 + 25=
34.4
Anika

6. [(1.4\0.7)+(15.3*2.2)] - 2^3
[2]+[33.66]-2^3
35.66-2^3
35.66-8
27.66
------Supraja G.------

7. [(1.4/7+3)*(1+6-6.7)+1]
[3.2*0.3+1]
[0.96+1]
1.96

----------------------------------------------------BRYAN--------------------------------------------------

8. By the way, 4^2 is 4 to the power of 2.
4^2*[(9.3/3)+(3.2*2)]-4
4^2*[31+6.4]-4
4^2*37.4-4
16*37.4-4
598.4-4
594.4
----------_-_-_-_-_-ANGELA-_-_-_-_-_----------

9. 1) 6 to the power of two - 9 divided by [(0.24*5)+(0.66*5]
2) 6 to the power of two - 9 divided by [1.2 + 3.3] =
3) 6 to the power of two - 9 divided by 4.5 =
4) 36 - 9 divided by 4.5 =
5) 36 - 2 =34
______________________________Anshul________________________________

10. 16.9+[(2*9) - (8/2)]
16.9+(18-4)
16.9+14
30.9
-Sukriti

11. PBEMDAS CHECK THE FOLLOWING AS YOU EVALUATE THE EXPRESSION
[( 8.3 + 3.9) + ( 2.3 x 4.5 ) ] divided by 3 + 5 to the power of 2 - 4
12.2 + ( 2.3 + 4.5)] divided by 3 + 5 to the power of 2 -4
12.2 + 103.5 divided by 3 + 5 to the power of 2 -4
115.7 divided by 3 + 5 to the power of 2 - 4
115.7 divided by 3 + 25 -4
38.66 + 25 -4
38.91 - 4
38.91-4= 38.87
* emma *

12. PBEMDAS

[(7.3*2.8) + ( 56.4 - 23.8)] + 4 to the power of 2 - 15.8*3.2
[(20.44) + (32.6)] + 4 to the power of 2 - 15.8*3.2
[53.04] + 4 to the power of 2 - 15.8*3.2
53.04 + 16 - 15.8*3.2
53.04 + 16 - 50.56
69.04 - 50.56
18.48
- Sudeep

13. [(6.2*2)+(8 divided by 4)]+3to the power of 3
[12.4+2]+3 to the power of 3
14.4+3 to the power of 3
14.4+27
41.4
-Sarah

14. 8+[(2x2to the second power)]divided by 2-4=
8+8divided by 2-4
8+4-4
12-4
=8

15. Sean^^^^^^^^^

16. 3+(8*8)–6/3*2⁴
3+64-6/3*2⁴
3+64-6/3*16
3+64-2*16
3+64-32
67-32
35
James

17. 4+[3*5+(5/50)]*3⁴
4+[3*5+10]*3⁴
4+[15+10]*3⁴
4+25*3⁴
4+25*81
4+2025
2029

-Megan.

18. 3+(4+7)-3=
3+3-3=
6-3=
3 Eshan

19. 4+ (7+(1+11)-2) <----- Bracket
4+(7+12-2)
4+17=21

John

20. Sorry, no brackets on keyboard

John

21. 42-9/[(2.4x7)+0.6x2]
16.8+1.2
9/18
.5
42-.5
41.5
Lex

22. 42-9/[2.4*7)+(0.6*2)]
2.4*7=16.8 0.6*2=1.2
16.8+1.2=18
9/18=0.5
42-0.5=41.5
Ahmed