You are watching: Add parentheses to make equation true
Write the end the equation ~ above a piece of document in large, easy-to-read numbers to protect against unnecessary errors indigenous sloppy handwriting. Our equation will be 1+2x3-4=-3. Make certain all symbols are simple to read, and also recheck your equation prior to beginning come ensure every information has been composed correctly.
Put parentheses roughly the very first two numbers listed to develop an equation; in this situation (1+2) x 3-4. Use PEMDAS to recognize the order of operations. PEMDAS, or you re welcome Excuse my Dear Aunt Sally, is an acronym signifying the correct order that all mathematics equations must be solved with. P is for parentheses, E is because that exponents, M is for multiplication, D is division, A represents addition and S is because that subtraction.
Work the end the trouble in the parentheses, (1+2). Take it the answer, 3, and also complete the equation, relocating from left come right. So, multiply 3 through 3 to gain 9. Subtract 4 from 9 to obtain 5. Parentheses are incorrect about the very first two numbers of the equation because your prize is no -3.
Rework the trouble by placing parentheses approximately the next two numbers in the equation; 1+ (2x3) - 4. Job-related it out using the PEMDAS order of operations. Girlfriend answer will certainly be 3 and still incorrect. Relocate the parenthesis to go approximately the last two numbers the the equation; now your answer will certainly be -3.
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Check her answer. Compose out her equation, and do the again to ensure all math was done correctly and also in the right order.