Self-Test C-1.1.5: Add, Subtract, Multiply and Divide Whole Numbers, Fractions, Decimals and Percentages
Complete Self-Test C-1.1.5 and check your answers.
- Express the following percentages as fractions and as decimals:
|
Percentage |
Fraction |
Decimal |
|
|
a. |
70% |
|
|
|
b. |
58% |
|
|
|
c. |
1.0% |
|
|
|
d. |
0.01% |
|
|
|
e. |
87% |
|
|
- Express the following fractions as decimals and as percentages:
|
Fraction |
Decimal |
Percentage |
|
|
a. |
3/8 |
|
|
|
b. |
3/16 |
|
|
|
c. |
5/32 |
|
|
|
d. |
411/16 |
|
|
|
e. |
2/3 |
|
|
- Express the following decimals as fractions and as percentages:
|
Decimal |
Fraction |
Percentage |
|
|
a. |
0.65 |
|
|
|
b. |
0.20 |
|
|
|
c. |
1.333 |
|
|
|
d. |
1.625 |
|
|
|
e. |
2.790 |
|
|
- What is 76% of 2,189?
Answer:
- What is 64% of 7,700?
Answer:
- What is 67.5% more than 48?
Answer:
- What is 15% less than 223?
Answer:
- What % of 1,900 is 133?
Answer:
- What % of 7,600 is 6,764?
Answer:
- Which is larger? Use < , > or = for each pair
46% of 86 43% of 26
6% of 55 40% of 62
30% of 84 64% of 10
34% of 97 46% of 36
68% of 72 41% of 45
46% of 20 29% of 49
86% of 40 57% of 55
49% of 93 50% of 77
- What would be your wage if a journeyman plumber earns $37.50/hr and you earn 55% of what they do?
Answer:
- A [latex]1 \frac{1}{2}\text{"}[/latex] P-trap at the wholesaler now sells for $9.75, and a price increase of 8% will take effect next week. What will the same fitting cost after the increase?
Answer:
- A gas-fired furnace is 93% efficient. If the appliance input is 78,000 BTUH, what is the output?
Answer:
Answer Key: Self-Test C-1.1.5 is on the other page.
