Areas Of Irregular Shapes Worksheet Page 11
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11Lesson 13
+ - x
S
B
k i l l
u i l d e r s
÷
3 9 , 0 8 4
6 , 6 9 3
– 9 , 2 0 6
× 4 0 8
0 . 4 2 ) 2 7 . 0 9 0
21. a.
b.
c.
$
Figure out the patterns and fill in the missing numbers.
22. a.
0 • 9 + 1
=
1
b.
1,089 • 1
=
1,089
1 • 9 + 2
=
11
1,089 • 2
=
2,178
12 • 9 + 3
=
111
1,089 • 3
=
3,267
123 • 9 + 4
=
1,111
1,089 • 4
=
1,234 • 9 + 5
=
11,111
1,089 • 5
=
5,445
• 9 + 6
=
111,111
1,089 • 6
=
6,534
123,456 • 9 +
=
1,089 • 7
=
1,089 • 8
=
8,712
1,089 • 9
=
9,801
Substitute 8 for n. Simplify the expressions.
64
23. a.
b. 6n
n
Change each subtraction to adding the opposite. Combine integers as usual.
24. a. 4 – (–13)
b. –8 – (+19)
c. –8 – (–9)
57
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