-7- 7 x 7 - 7 ÷ 7 please do the full working

2008-08-12 7:57 am

回答 (7)

2008-08-12 8:21 am
✔ 最佳答案
According to the BODMAS Rule, - 7 - 7 × 7 - 7 ÷ 7 should be bracketed as:
- 7 - (7 × 7) - (7 ÷ 7) where you've to do the divison first and then the multiplication.

By doing this, you get: - 7 - (49) - (1).

Now, since you've all the signs similar, you can remove the brackets. You will then get: - 7 - 49 - 1, which equals -57. Hope my answer was clear.


2008-08-12 3:16 pm
-7 - 7 x 7 - 7 ÷ 7
= -7 - 49 - 1
= -56 - 1
= -57
2008-08-12 3:06 pm
-7- 7 x 7 - 7 ÷ 7
= -7-49-1
= -57
2008-08-12 3:02 pm
Using Order of Operations:
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

solve like this:
-7- 7 x 7 - 7 ÷ 7
-7- 49 - 7 ÷ 7
-7- 49 - 1
-57
2008-08-12 3:02 pm
-7-7x7-7/7
-7-49-7/7
-7-49-1
-56-1
-57
2008-08-12 3:01 pm
-7 - (7 x 7) - ( 7 / 7 )

- 7 - 49 - 1

- 57
2008-08-12 3:11 pm
-7 -7 x 7 - 7 ÷ 7
0 x 7 - 7 ÷ 7
0 x 0 ÷ 7
0 ÷7
= 0


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