Which order would I work this in
4 * 2 - 21 / 7 =
Can get best answer
Easy maths question here?
2009-03-16 1:14 pm
回答 (14)
2009-03-16 1:19 pm
✔ 最佳答案
8-3=5operation order first division or multiplication, afterwards addition and substraction
2009-03-16 9:03 pm
= 4(2) - 21/7
= 8 - 3
= 5
= 4(2 - 21/7)
= 4(2 - 3)
= 4(- 1)
= - 4
= (4[2 - 21])/7
= (4[- 19])/7
= - 76/7 or - 10 6/7 OR expressed another way with the same result as follows:
= 4([2 - 21/7)
= 4(- 19/7)
= - 76/7 or - 10 6/7
Answer: You need to be very clear with your problem by using correctly the enclosing signs like ( ), [ ] & { }.
= 8 - 3
= 5
= 4(2 - 21/7)
= 4(2 - 3)
= 4(- 1)
= - 4
= (4[2 - 21])/7
= (4[- 19])/7
= - 76/7 or - 10 6/7 OR expressed another way with the same result as follows:
= 4([2 - 21/7)
= 4(- 19/7)
= - 76/7 or - 10 6/7
Answer: You need to be very clear with your problem by using correctly the enclosing signs like ( ), [ ] & { }.
2009-03-16 10:34 pm
First, divide 21/7 which equals 3
Next, multiply 4*2 which equals 8
Lastly, subtract 8-3 which equals 5
So your answer is 5.
Next, multiply 4*2 which equals 8
Lastly, subtract 8-3 which equals 5
So your answer is 5.
2009-03-16 9:27 pm
4 x 2 - 21/7
= 8 - 21/7
= 8 - 3
= 5
= 8 - 21/7
= 8 - 3
= 5
2009-03-16 8:52 pm
4 * 2 - 21 / 7 =
8 - 3 = 5
its bidmas not bodmas and the i stands for the index number!!!
brackets, index, divison , multiplication, add, subtract
8 - 3 = 5
its bidmas not bodmas and the i stands for the index number!!!
brackets, index, divison , multiplication, add, subtract
2009-03-16 8:33 pm
4*2 - 21/7 = 0.7142857
2009-03-16 8:28 pm
BODMAS
Brackets, (no idea what O stands for) Division, Multiplication, Addition, Subtraction
No B
D ->
4 * 2 - 3
M ->
8 - 3
No A
S ->
5
Final Answer is 5
Brackets, (no idea what O stands for) Division, Multiplication, Addition, Subtraction
No B
D ->
4 * 2 - 3
M ->
8 - 3
No A
S ->
5
Final Answer is 5
2009-03-16 8:28 pm
4*2
then
21/7
them
8-3
then
21/7
them
8-3
2009-03-16 8:21 pm
8-3=5
2009-03-16 8:21 pm
According to the standard "order of operations agreement," multiplications and divisions are worked (from left to right) before any additions or subtractions.
So we do the multiplications and divisions first: 4*2 = 8 and 21/7 = 3.
That makes the expression 8 - 3, and obviously that = 5.
Hope that was clear!
So we do the multiplications and divisions first: 4*2 = 8 and 21/7 = 3.
That makes the expression 8 - 3, and obviously that = 5.
Hope that was clear!
2009-03-16 8:20 pm
In BODMAS,ie division ,multiplication,addition,substraction.
ie, 8 - 3 = 5
ie, 8 - 3 = 5
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