Question

1+2-3•6+10:2-4•7+3•5:2=?

Answer 1

1+2-3*6+10/2-4*7+3*5/2=25

Answer 2

To solve this expression, you should follow the order of operations (PEMDAS/BODMAS), which stands for Parentheses/Brackets, Exponents/Orders (i.e., powers and square roots, etc.), Multiplication and Division (left-to-right), and Addition and Subtraction (left-to-right).

1 + 2 - 3 * 6 + 10 ÷ 2 - 4 * 7 + 3 * 5 ÷ 2

1 + 2 - 18 + 10 ÷ 2 - 4 * 7 + 3 * 2.5

Now, perform multiplication and division from left to right:

1 + 2 - 18 + 5 - 28 + 7.5

Now, perform addition and subtraction from left to right:

(1 + 2) - 18 + 5 - 28 + 7.5 3 - 18 + 5 - 28 + 7.5

-15 + 5 - 28 + 7.5

Now, continue to simplify:

-10 - 28 + 7.5

-38 + 7.5

Now, perform the final addition:

-30.5

So, 1 + 2 - 3 * 6 + 10 ÷ 2 - 4 * 7 + 3 * 5 ÷ 2 equals -30.5.