Grades 6-8 Fcat 2.0 Mathematics Reference Sheet Page 11
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20Big Idea 3: BIG IDEA 3
Write, interpret, and use mathematical expressions and equations.
Write, interpret, and use mathematical expressions and equations.
Objective: Write an algebraic expression to represent unknown quantities.
Write an algebraic expression to represent unknown quantities.
• A variable is a symbol, usually a letter, used to represent a number.
is a symbol, usually a letter, used to represent a number.
• Algebraic expressions are combinations of variables, numbers, and at least one operation.
combinations of variables, numbers, and at least one operation.
Examples:
The sum of 5 and some number is written as:
The sum of 5 and some number is written as:
5 + n
because the operation that is associated with the word
because the operation that is associated with the word sum is
addition.
n - 0.3
The difference of a number and three tenths is written as:
The difference of a number and three tenths is written as:
because the operation that is associated with the
because the operation that is associated with the
word difference is subtraction.
1.)
2.)
a number minus
a number minus 7
1
a number plus
2
3.)
4.)
the difference of twenty-one hundredths and a number
one hundredths and a number
the sum of a number and forty
the sum of a number and forty-six
5.)Frankie has sixty-five more football cards
than his
6. Jacky is five-eighths of an inch shorter than Barbie
of an inch shorter than Barbie.
friend, John.
11
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education