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Click here for sample
quiz 1
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| answers: d b c c b c c b c c
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| section 1.1
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| 1. What is the place of the digit 2? 273,569.
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| a
1000,000 place |
| b10,000
place |
| c200,000
place |
| d100,000
place |
| 2. Write in expanded form. 30, 704,
118.
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|
a3,000,000
+ 700,000 + 4,000 + 118 |
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b30,000,000
+ 700,000 + 4,000 + 100 + 10 + 8 |
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c30,000,000
+ 70,000 + 4,000 + 100 + 10 + 8 |
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dnota |
| 3. Write the following in digits: Seventy thousand, four hundred twenty one |
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a7,421 |
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b7,0421 |
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c70,
421 |
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dnota |
| 1.2
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| 4. Use the associative property only
to
rewrite 9 + (110 + x)
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|
a9 + (x +
110) |
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b(x + 9) +
110 |
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c(9 +
110) + x |
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dnota |
| 5. Simplify the expression of the
previous problem. |
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ax +
109 |
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b119 + x |
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c19 + x |
dnota
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| 6. Find the solution of the equation: x +
20,000 = 100,000 |
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ax =
120,000 |
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bx =
200,000 |
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cx =
80,000 |
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dnota |
7. Solve the equation by first simplifying
each side of the equation as much as possible and then finding the
solution by inspection.
50 + (20 + t ) = 90 + 50. |
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a t is
between 20 and 40 |
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b t is
between 40 and 60 |
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c t is
between 60 and 80 |
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dnota |
| 1.3 (Put that calculator away !!) |
8.
Add:
5,281
5,016 |
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a100,297 |
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b10,297 |
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c1,297 |
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dnota |
9. Add:
5,321
5,086 |
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a10,307 |
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b100,407 |
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c10,407 |
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dnota |
10. Joy is a full time student enrolled in
Math 105 at Chabot and part-time street vendor in Berkeley. She
keeps track of the price of each item she sold in the first hour (
!) of work on Telegraph Ave. What is the total revenue (in
dollars) she takes in during this time?
| item |
price (dollars) |
| silver ring |
60 |
| gold earrings |
45 |
| copper bracelet |
56 |
| silver neck piece |
98 |
gold
neck
piece |
100 |
| silver toe ring |
122 |
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| a370 |
|
b380 |
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c481 |
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dnota |