Can you please check if i have these right?
3 + 15 - 5 x 2 = 8
5 x 6 + 2 x 4 = 38
48 / 8 -1 = 5
68 - 12 / 2 /3 = 66
6 (2 + 7 ) = 54
25 - (6x4) = 1
3 [ 9 - (6 -3)] -10 = 8
60 / (3 +12) = 4
4-2 + 6 x 2 = 14
18 / (5 -2) = 6
16 +24 / 30 -22 = 5
2[4 (9 -7 ) + 1 ] = 18
(8 / 8 + 2 + 11 ) /2 = 7
9 + 3 x 4 = 21
18 / 3 x 5 -4 = 26
10 + 28 / 14 - 5 = 7
You can check your own work here:
http://www.wolframalpha.com
16 + 24
--------
30-22
i got 40/8 = 5 is that right?
i went to that website they gave me different answer??
( 16 + 24 ) / ( 30 - 22 ) = 40 / 8 = 5
Let's check if the given equations are correct:
1) 3 + 15 - 5 x 2 = 8
To solve this equation, we need to follow the order of operations, which is parentheses, exponents, multiplication/division (from left to right), and then addition/subtraction (from left to right).
3 + 15 - 5 x 2
= 3 + 15 - 10 (multiplying 5 and 2)
= 18 - 10
= 8
The equation is correct.
2) 5 x 6 + 2 x 4 = 38
Again, we can follow the order of operations.
5 x 6 + 2 x 4
= 30 + 2 x 4 (multiplying 5 and 6)
= 30 + 8 (multiplying 2 and 4)
= 38
The equation is correct.
3) 48 / 8 - 1 = 5
Following the order of operations:
48 / 8 - 1
= 6 - 1 (dividing 48 by 8)
= 5
The equation is correct.
4) 68 - 12 / 2 / 3 = 66
Applying the order of operations:
68 - 12 / 2 / 3
= 68 - 6 / 3 (dividing 12 by 2)
= 68 - 2 (dividing 6 by 3)
= 66
The equation is correct.
5) 6 (2 + 7) = 54
Using the parentheses first:
6 (2 + 7)
= 6 x 9 (adding 2 and 7)
= 54
The equation is correct.
6) 25 - (6 x 4) = 1
Using the parentheses first:
25 - (6 x 4)
= 25 - 24 (multiplying 6 and 4)
= 1
The equation is correct.
7) 3 [9 - (6 - 3)] - 10 = 8
Following the parentheses first:
3 [9 - (6 - 3)] - 10
= 3 [9 - 3] - 10 (simplifying (6 - 3))
= 3 [6] - 10 (subtracting 3 from 9)
= 18 - 10 (multiplying 3 and 6)
= 8
The equation is correct.
8) 60 / (3 + 12) = 4
Performing addition inside parentheses:
60 / (3 + 12)
= 60 / 15 (adding 3 and 12)
= 4
The equation is correct.
9) 4 - 2 + 6 x 2 = 14
Using the order of operations:
4 - 2 + 6 x 2
= 4 - 2 + 12 (multiplying 6 and 2)
= 2 + 12 (subtracting 2 from 4)
= 14
The equation is correct.
10) 18 / (5 - 2) = 6
Following the parentheses:
18 / (5 - 2)
= 18 / 3 (subtracting 2 from 5)
= 6
The equation is correct.
11) 16 + 24 / 30 - 22 = 5
Applying the order of operations:
16 + 24 / 30 - 22
= 16 + 0.8 - 22 (dividing 24 by 30)
= 16 - 22 + 0.8 (subtracting 22 from 16)
= -6 + 0.8
= -5.2
The equation is incorrect. The correct answer is -5.2, not 5.
12) 2 [4 (9 - 7) + 1] = 18
Using the parentheses:
2 [4 (9 - 7) + 1]
= 2 [4 (2) + 1] (subtracting 7 from 9)
= 2 [8 + 1] (multiplying 4 and 2)
= 2 [9] (adding 8 and 1)
= 18 (multiplying 2 and 9)
The equation is correct.
13) (8 / 8 + 2 + 11) / 2 = 7
Working inside the parentheses:
(8 / 8 + 2 + 11) / 2
= (1 + 2 + 11) / 2 (dividing 8 by 8)
= 14 / 2 (adding 1, 2 and 11)
= 7
The equation is correct.
14) 9 + 3 x 4 = 21
Using the order of operations:
9 + 3 x 4
= 9 + 12 (multiplying 3 and 4)
= 21
The equation is correct.
15) 18 / 3 x 5 - 4 = 26
Applying the order of operations:
18 / 3 x 5 - 4
= 6 x 5 - 4 (dividing 18 by 3)
= 30 - 4 (multiplying 6 and 5)
= 26
The equation is correct.
16) 10 + 28 / 14 - 5 = 7
Using the order of operations:
10 + 28 / 14 - 5
= 10 + 2 - 5 (dividing 28 by 14)
= 12 - 5 (adding 10 and 2)
= 7
The equation is correct.
Overall, most of the equations you provided are correct. There is only one equation (#11) that is incorrect.