2006-12-02 10:49:49 · 23 answers · asked by Anonymous in Education & Reference ➔ Words & Wordplay
3 x 7 x (56 x 8) = 9408
2006-12-02 10:50:48 · answer #1 · answered by Lola 3 · 1⤊ 0⤋
Use the acronym:
Please Excuse My Dear Aunt Sally
Parenthesis Exponents Multiplication Division Addition Subtraction
Remember, we do math the same way we read, from left to right.
Parenthesis first: 56 x 8 = 448
Then start at the left.
448 x 3 = 1344
1344 x 7 = 9408
2006-12-02 10:57:17 · answer #2 · answered by Miss M 2 · 1⤊ 0⤋
When sums involve brackets, the calculations in brackets are always done separately, then the answer taken as a single item; however, in this case, all values are multiplied and so it doesn't matter the order. In a calculation like this, you just multiply all the numbers.
3 x 7 x 56 x 8 = 9408
2006-12-02 10:53:41 · answer #3 · answered by vicki_holmesland 3 · 0⤊ 0⤋
PMDAS: Parentheses or powers first, then Multiplication, Division, Addition, and Subtraction in that order. So 56x8=448. Then 3x7x448=9408.
2006-12-02 10:53:47 · answer #4 · answered by Melanie D 3 · 0⤊ 0⤋
9408. The parantheses around the 56 X 8 are superfluous, as multiplication and addition are commutative.
2006-12-02 10:58:06 · answer #5 · answered by archangel2923 3 · 0⤊ 0⤋
okay so use the order of opperations.
have you learned about PEMDAS (please excuse my dear aunt sally)?
this is what it means: parenthesis, exponents, multiply, divide, add, subtract.
in your case you need to multiply the (56*8) first. That equals 448. Then multiply that number by 3 and 7.
Your final answer should be
9408
Good luck with the math!
2006-12-02 10:55:03 · answer #6 · answered by IMsweet 1 · 0⤊ 0⤋
that is so EASY. 9408.
3 x 7 = 21
56 x 8 = 448
448 x 21 = 9,408
hope that helps!!!!!!!!!!!!11
2006-12-02 10:52:42 · answer #7 · answered by ♥ 2 · 1⤊ 0⤋
147
2006-12-02 10:50:54 · answer #8 · answered by nermil 5 · 0⤊ 1⤋
9408 3x7=21 21x(56X8) 21x448 = 9408
2006-12-02 10:52:06 · answer #9 · answered by Anonymous · 1⤊ 0⤋
9408
and by the way the brackets are superfluous, it doesn't matter what order you multiply these numbers in because the result will always be the same.
2006-12-02 10:52:16 · answer #10 · answered by teef_au 6 · 2⤊ 0⤋