Hello all my daughter is having trouble with the following problem:
100 -[20+5(4+3(2+1)].
Please tell me and her how to do it in steps.
Thanks.
Order of Operations Problem..?
2009-06-02 3:11 pm
回答 (14)
2009-06-02 3:24 pm
✔ 最佳答案
Please Excuse My Dear Aunt SallyParenthesis Exponent Multiplication Division Addition Subtraction
where multiplication and division are at the same time then addition and subtraction are at the same time
assuming the equation has the last parenthesis it would look like this:
100 -[20+5(4+3(2+1))]
100 -[20+5(4+3(3)]
100 -[20+5(4+9)]
100 -[20+5(13)]
100 -[20+65]
100 -[85]
15
2009-06-02 3:15 pm
Order of Operations
100-525
100-525
2009-06-02 3:51 pm
100 - {20 + 5[4 + 3(2 + 1)]}
= 100 - {20 + 5[4 + 3(3)]}
= 100 - {20 + 5[4 + 9]}
= 100 - {20 + 5[13]}
= 100 - {20 + 65}
= 100 - 85
= 15
= 100 - {20 + 5[4 + 3(3)]}
= 100 - {20 + 5[4 + 9]}
= 100 - {20 + 5[13]}
= 100 - {20 + 65}
= 100 - 85
= 15
2009-06-02 3:19 pm
complete what is in the innermost parenthesis first and then work your way out.
100- [20+5(4+3(3)]
100-[20+5(4+9)]
100-[20+5(13)]
100-[20+65]
100-85
= 15
100- [20+5(4+3(3)]
100-[20+5(4+9)]
100-[20+5(13)]
100-[20+65]
100-85
= 15
2009-06-02 3:19 pm
first you have forgotten a bracket.shuld be written
100-[20+5(4+3(2+1))]
100-[20+5(4+3(3))]
100-[20+5(4+9)]
100-[20+5*13]
100-[20+65]
100-85=15
100-[20+5(4+3(2+1))]
100-[20+5(4+3(3))]
100-[20+5(4+9)]
100-[20+5*13]
100-[20+65]
100-85=15
2009-06-02 3:18 pm
first start with 2+1=3 then 4+3=7 then 7+3=10 then 20+5=25 then 25+10 =35 then 100-35=65. that should be how its done. hpoe i was some help good luck!!
2009-06-02 3:18 pm
=100-[20+5(4+3*3)]
=100-[20+(5*13)]
=100-[20+65]
=100-85
=15
=100-[20+(5*13)]
=100-[20+65]
=100-85
=15
2009-06-02 3:17 pm
start with 2+1 =3
then 3(3)= 9
4+9= 13
5(13) = 65
20+65= 85
100-85= 15
then 3(3)= 9
4+9= 13
5(13) = 65
20+65= 85
100-85= 15
2009-06-02 3:17 pm
2 + 1 = 3
3 X 3 = 9
4 + 9 = 13
5 X 13 = 65
20 + 65 = 85
100 - 85 = 15...that's the answer !
3 X 3 = 9
4 + 9 = 13
5 X 13 = 65
20 + 65 = 85
100 - 85 = 15...that's the answer !
2009-06-02 3:16 pm
100 - [20+5(4+3(3)]
100 - [20+5(4+9)]
100 - [20+5(13)]
100 - [20+65]
100 - [85]
Answer is 15
100 - [20+5(4+9)]
100 - [20+5(13)]
100 - [20+65]
100 - [85]
Answer is 15
參考: Calc student
收錄日期: 2021-05-01 12:32:17
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