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1. The entrance to a silver mine is 300 meters above sea level. The mine is 105 meters deep. How high is the entrance from the bottom of the mine? To answer this question, what steps will you take?
A. Subtract -105 from 300
C. Subtract 105 from 300
B. Subtract 300 from 105
D. Subtract -105 from 300

2. Nora bought a share of stocks for Php 3 435. The next day, the price of each share dropped by Php 34. On the 3rd day, the price rose by Php 51. How much was Nora’s stock worth at the end of the 3rd day?
A. Php 3 452.00
B. Php 3 542.00
C. Php 2 452.00
D. Php 2 524.00

3. Rowena wants to buy a new smartphone from a mall whose cash price is Php 11 800. If she buys it through credit card, she needs to pay the amount of Php 1 600 for 9 months. How much more is the price of the smartphone when purchased on credit card than in cash?
A. Php 2 600
B. Php 3 600
C. Php 1 600
D. Php 600

4. Claire wanted to buy a drink that costs Php 190, but she did not have enough money for it. Gina agreed to lend her as much as money as she had with her. After buying the drink, Claire was left with Php 10. How much money did she have at first?
A. Php 90
B. Php 100
C. Php 110
D. Php 120

5. Mr. Ramos is filling his new fish aquarium with water. The aquarium holds 80 gallons. If he is going to fill of the aquarium, how many gallons will he need?
A. 40
B. 54
C. 64
D. 74

6. Troy is buying a computer on sale. The original price was Php 12 000. If the sale price is the original price, how much did Troy pay for the computer?
A. Php 10 000
C. Php 6 000
B. Php 8 000
D. Php 4 000

7. Edna started her hike at an elevation of 150 feet below sea level. Throughout her hike, she ascended to 3 500 feet and then descended 675 feet. How much did her elevation change?
A. 2 670 feet
C. 2 680 feet
B. 2 675 feet
D. 2 685 feet

8. Alex had Php 15 000 in his checking account. He did a part-time job and made Php 6 000. He decided to pay for him and a friend to go to the movies and each ticket costs Php 350. How much money was left in his checking account?
A. Php 22 300
B. Php 21 300
C. Php 21 000
D. Php 20 300

9. There are 50 students in Ms. Fullido's class and of them has their own smartphones. Of this group of students, of them are allowed to use social media. How many of the students have smartphones and can use social media at the same time?
A. 25
C. 20
B. 15
D. 10

10. Jean bought a box of laundry detergent that contains 200 scoops. Each load of laundry uses 2.5 scoops. How many loads of laundry can she do with this one box?
A. 100
C. 120
B. 150
D. 80

14. A snail crawls 2 x 10-5 kilometer per second. How do you write its speed in standard notation?
A. 0.000 002
B. 0.000 0002
C. 0.000 02
D. 0.002

15. A computer can do an arithmetic operation in 1 x 10-8 second. How many arithmetic operations can it perform in 1 minute?
A. 6 x 107
B. 6 x 106
C. 6 x 10-6
D. 6 x 10-7
16. How many seconds are there in 100 years (365 days per year)?
A. 3.1536 x 107
C. 3.1536 x 108
B. 3.1536 x 109
D. 3.1536 x 1010

17. The Earth picks up about 12 000 000 000 g of dust from outer space each day. How much dust does it pick in 2 years (365 days per year)?
A. 8.76 x 1012
C. 8.76 x 109
B. 8.76 x 1011
D. 8.76 x 108

18. You need to light 3 000 000 000 000 000 000 000 000 000 candles to give light as much as the Sun. How do you write the given number of candles in scientific notation? A. 3 x 1025
C. 3 x 1028
B. 3 x 1026
D. 3 x 1027

19. Write 5.4 x 10-6 in standard notation.
A. 0.000 0005 4
C. 0.000 000 54
B. 0.000 005 4
D. 0.000 000 054

20. The heaviest dog is the St. Bernard, which has a mass of 1 x 105 grams. How heavy are 5 St. Bernard dogs?
A. 5 000
C. 500 000
B. 50 000
D. 5 000 000 ​

Sagot :

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Answer:

1. The entrance to a silver mine is 300 meters above sea level. The mine is 105 meters deep. How high is the entrance from the bottom of the mine? To answer this question, what steps will you take?

A. Subtract -105 from 300

C. Subtract 105 from 300

B. Subtract 300 from 105

D. Subtract -105 from 300

2. Nora bought a share of stocks for Php 3 435. The next day, the price of each share dropped by Php 34. On the 3rd day, the price rose by Php 51. How much was Nora’s stock worth at the end of the 3rd day?

A. Php 3 452.00

B. Php 3 542.00

C. Php 2 452.00

D. Php 2 524.00

[tex]3435 - 34 = 3401 + 51 = 3452[/tex]

3. Rowena wants to buy a new smartphone from a mall whose cash price is Php 11 800. If she buys it through credit card, she needs to pay the amount of Php 1 600 for 9 months. How much more is the price of the smartphone when purchased on credit card than in cash?

A. Php 2 600

B. Php 3 600

C. Php 1 600

D. Php 600

[tex]1600 \times 9 = 14 \: 400[/tex]

[tex]14 \: 400 - 11 \: 800 = 2600[/tex]

4. Claire wanted to buy a drink that costs Php 190, but she did not have enough money for it. Gina agreed to lend her as much as money as she had with her. After buying the drink, Claire was left with Php 10. How much money did she have at first?

A. Php 90

B. Php 100

C. Php 110

D. Php 120

[tex]190 + 10 = 200 \div 2 = 100[/tex]

5. Mr. Ramos is filling his new fish aquarium with water. The aquarium holds 80 gallons. If he is going to fill of the aquarium, how many gallons will he need?

A. 40

B. 54

C. 64

D. 74

(The question is vague, please check it again. How many gallons before filling the aquarium?)

6. Troy is buying a computer on sale. The original price was Php 12 000. If the sale price is the original price, how much did Troy pay for the computer?

A. Php 10 000

C. Php 6 000

B. Php 8 000

D. Php 4 000

(The question is vague, please check it again. How much was the sale? Is it 50%?)

7. Edna started her hike at an elevation of 150 feet below sea level. Throughout her hike, she ascended to 3 500 feet and then descended 675 feet. How much did her elevation change?

A. 2 670 feet

C. 2 680 feet

B. 2 675 feet

D. 2 685 feet

[tex]0 - 150 = - 150 + 3500 = 3350 - 675 = 2675[/tex]

8. Alex had Php 15 000 in his checking account. He did a part-time job and made Php 6 000. He decided to pay for him and a friend to go to the movies and each ticket costs Php 350. How much money was left in his checking account?

A. Php 22 300

B. Php 21 300

C. Php 21 000

D. Php 20 300

[tex]15000 + 6000 = 21000 - 2(350) = 21000 - 700 = 20300[/tex]

9. There are 50 students in Ms. Fullido's class and of them has their own smartphones. Of this group of students, of them are allowed to use social media. How many of the students have smartphones and can use social media at the same time?

A. 25

C. 20

B. 15

D. 10

(The question is vague, please check it again. How many percentage of students are allowed to use smartphones at a time?)

10. Jean bought a box of laundry detergent that contains 200 scoops. Each load of laundry uses 2.5 scoops. How many loads of laundry can she do with this one box?

A. 100

C. 120

B. 150

D. 80

[tex]200 \div 2.5 = 80[/tex]

14. A snail crawls 2 x 10-5 kilometer per second. How do you write its speed in standard notation?

A. 0.000 002

B. 0.000 0002

C. 0.000 02

D. 0.002

Move the decimal point five times to the left of two.

15. A computer can do an arithmetic operation in 1 x 10-8 second. How many arithmetic operations can it perform in 1 minute?

A. 6 x 107

B. 6 x 106

C. 6 x 10-6

D. 6 x 10-7

[tex]60 \times 1\times 10 {x}^{ - 8} = 6 \times 10x {}^{ - 7} [/tex]

16. How many seconds are there in 100 years (365 days per year)?

A. 3.1536 x 107

C. 3.1536 x 108

B. 3.1536 x 109

D. 3.1536 x 1010

17. The Earth picks up about 12 000 000 000 g of dust from outer space each day. How much dust does it pick in 2 years (365 days per year)?

A. 8.76 x 1012

C. 8.76 x 109

B. 8.76 x 1011

D. 8.76 x 108

12 000 000 000 × 2 × 365 = 8 760 000 000 000

18. You need to light 3 000 000 000 000 000 000 000 000 000 candles to give light as much as the Sun. How do you write the given number of candles in scientific notation?

A. 3 x 1025

C. 3 x 1028

B. 3 x 1026

D. 3 x 1027

There are 27 zeroes after 3.

19. Write 5.4 x 10-6 in standard notation.

A. 0.000 0005 4

C. 0.000 000 54

B. 0.000 005 4

D. 0.000 000 054

Move the decimal point 6 times to the left of 5.

20. The heaviest dog is the St. Bernard, which has a mass of 1 x 105 grams. How heavy are 5 St. Bernard dogs?

A. 5 000

C. 500 000

B. 50 000

D. 5 000 000

[tex]5 \times 10x {}^{5} = 500 \: 000[/tex]

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