Answer Page
Back to Lesson 1-4
Name
1-4B Lesson Master
SKILLS Objective A:
Perform arithmetic operations.
In 1–8, calculate.
1. 74
2. 7 × 7 × 7 × 7
3. 0.074
4. 223
5. 2.23
6. 105
7. 73 + 7
8. 37
9. Complete the table.
Exponential Form
Decimal Form
64
1,296
65
66
67
10. Look for a pattern in the decimal forms in the above table. Use your pattern to help you predict
the last two digits of 68.
Copyright © Wright Group/McGraw-Hill
11. Calculate 68 to see if the prediction is correct.
In 12–15, fill in the blank using >, <, or =.
12. 45
54
13. 45
64
14. 45
210
15. 45
103
Transition Mathematics
UCSMP_SMP08_NL_TM1_TR1_C01_103-1113 113
113
5/23/07 12:05:51 PM
Answer Page
Back to Lesson 1-4
Name
1-4B
page 2
SKILLS
Objective B: Convert powers and word names for
numbers to decimals.
In 16–19, identify the base and the exponent. Then evaluate the power in
your head.
Base
16.
72
17.
29
18.
110
19.
the third power
of one third
Exponent
Power
In 20 and 21, write the given number in decimal form and exponential form.
20. one trillion
21. one hundred thousand
In 22 and 23, write the problem in a. decimal form and b. exponential
form. Then multiply. Write the product in c. decimal form and
d. exponential form.
23. one hundred times one hundred
a.
a.
b.
b.
c.
c.
d.
d.
SKILLS
Objective D: Multiply by powers of ten.
In 24–26, evaluate.
24. 1,420 × 106
25. 0.116 × 106
Copyright © Wright Group/McGraw-Hill
22. one thousand times one thousand
26. 338 · 103 · 105
114
Transition Mathematics
UCSMP_SMP08_NL_TM1_TR1_C01_103-1114 114
5/23/07 12:05:51 PM