Lesson 1-10 for exercise sets. Chapter 1 21
Practice & Activities
Simplify.
1.3(16) 60 12 2. 3. 4.
5.Discuss and Write Why is it important to have rules for simplifying
an expression that contains more than one operation?
( 20 10 )( 26 5 )
6
( 2 4 )^3
23 43
( 16 4 )5 • 8
23
NETS11359•Sadlier(G7PIM09SB)BPrinting• 8207-7020-021 •sp4-28-08•EditXXXxx.xx.08•1st
Evaluate the dividend.
Compute within parentheses.
Simplify the exponent.
Multiply.
This is the value of the dividend.
Multiply to evaluate the divisor.
This is the value of the divisor.
(^2884) 72
288
4
288
4(1)
288
4(1)
9 ( 32 )
4(1)
32 ( 32 )
4(1)
32 ( 34 2 )
4(1)
32 ( 34 2 )
4(1)
32 ( 34 2 )
4(1)
Divide the dividend by the
divisor to find the value of
the expression.
1
Evaluate the dividend.
Simplify the exponent.
Multiply.
Divide.
This is the value of the divisor.
2
Compute within
parentheses.
16
8
16
8
16
4 (2) (6)
16
4 (2) (6)
48 3
4 (2) (6)
8 ( 6 ) 3
4 (2) (6)
23 ( 6 ) 3
4 (2) (6)
23 ( 30 24 ) 3
4 (2) (6)
23 ( 30 24 ) 3
4 (2) (6)
23 ( 30 24 ) 3
4 (2) (6)
To evaluate the divisor,
divide and then add.
This is the value of
the dividend.
Divide the dividend by
the divisor.
2
The caret key, , is used
to enter exponents.
You can use a calculator to check your work. Check the answer
from Example 1 above. You will need to enclose the divisor
within parentheses.
Check: 72
Press 3 2 34 2 4 1
32 ( 34 2 )
4 ( 1 )
72
?
A fraction bar is also a grouping symbol that indicates division.
Simplify the expression in the dividend and the divisor before dividing.
Find the value of each expression.
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