This preview shows page 1. Sign up to view the full content.
Unformatted text preview: and division, raising to a power and extraction of a root are two by two
mutually inverse operations. Order of operations. Brackets
If brackets are absent, the following order of operations is right:
1) raising to a power and extraction of a root (one after another);
2) multiplication and division (one after another);
3) addition and subtraction (one after another).
If brackets are present, at first all operations inside brackets are executed according to the aforesaid order, and
then the rest of the operations out of brackets are executed (in the same order).
E x a m p l e. Calculate the next expression:
( 10 + 23 · 3 ) + 43 – ( 16 : 2 – 1 ) · 5 – 150 : 52 .
S o l u t i o n. At first, powers must be calculated and changed by theirs values:
(10 + 8 · 3) + 64 – (16: 2 – 1) · 5 – 150: 25; Math I -2- Feel free to pass this on to your friends, but please don’t post it online.
Discuss UPCAT and other college entrance exam questions and answers at Academic-Clinic’s
Facebook Page. We encourage you to answer the questions we post there and actively participate in
the discussions on our wall.
For UPCAT, ACET, DLSUCET and USTET tips, tricks, news and other college entrance exam
information, visit the Academic-Clinic website. Tell your friends and classmates to come find and join
us. The more, the merrier. Good luck! AcademicAcademic
The achiever’s guide to academic life and beyond…
W ebsite: http://academic-clinic.com
College entrance exam and science high school entrance test tips. Conquer UPCAT, ACET, USTET,
DLSUCET, PSHS-NCE, and other entrance tests.
after this, multiplication and division in the brackets and out of
them are executed:
( 10 + 24 ) + 64 – ( 8 – 1 ) · 5 – 6 ;
now, additions and subtractions in the brackets are executed:
34 + 64 – 7 · 5 – 6 ;
finally, after the rest of the multiplication 7 · 5 = 35 we receive:
34 + 64 – 35 – 6 = 57 Laws of addition and...
View Full Document
- Spring '13