Câu 5:
What is your answer if you add 32 tens and 18 ones to the difference of 5000 and 32 hundreds?
Answer: Your answer is 

Câu 6:
Subtract 85 from the sum of 2348 and 788. How many tens are there in the result?
Answer: 

Câu 7:
Find the difference between 10 thousands and 736 tens.
Answer: The difference is 

Câu 8:
Joanne is 28 years older than Melvin. Mabel is 16 years younger than Joanne. If Mabel is 43 years old, find the total age of them.
Answer:  years old.

Câu 9:
Mark has 68 more books than Michael. Tom has 21 fewer books than Mark. They have 865 books in all. How many books does Mark have?
Answer: Mark has  books.

Câu 10:
An MTR train left Kovan Station with 259 male and 678 female passengers. At Hougang Station, 588 passengers alighted and only 30 female passengers boarded the train. How many passengers were there in the train then?
Answer:  passengers.

There are many varieties of spider in the American Southwest, but none receives more respect than the western black widow, Latrodectus Hesperus. This poisonous spider, also called the “hour-glass” or “shoe-button” spider for the shape of the red markings on its abdomen, produces a venom 15 times more powerful than that of a rattlesnake. However, few deaths can be blamed on this insect because bites are rare and only a small amount of poison enters the body.

The female adult black widow may reach a length of 1 ¼ inches, while the smaller male averages ¼ inch long. The adult female has a shiny black bulb-shaped abdomen, which distinguishes it from the male of the species. The male is generally brown with red and white markings on its flat underside.

The female adult deposits its eggs in specially constructed sacs that hold from 50 to 250 eggs. The tiny pale spiderlings hatch within a few months and gradually develop into adults in one to two years. Some females live up to three years. The male does not fare so well, as it sometimes suffers the fate of being consumed by the female after the summer mating season.

1. What does the passage mainly discuss?

A. Varieties of spider in the southwestern U.S.

B. Characteristics of Latrodectus Hesperus

C. Poisonous animals of the American Southwest

D. the abdomens of black widow spiders

2. It can be inferred from the passage that rattlesnakes

A. cause more deaths than black widows

B. do not have markings on their bodies

C. are limited in geographical range

D. have more powerful venom than black widows

3. Which of the following is NOT mentioned in the passage as a difference between a male and female black widow?

A. Its body length B. The shape of its body

C. The potency of its venom D. Its life span

4. In line 7, the word “underside” refers to

A. the portion of the head closest to the ground

B. the legs C. the upper back D. the abdomen

5. According to the passage, the maturation of baby black widow spiders occurs

A. very rapidly B. over a couple of years

C. within several months D. during the summer mating season

Exercise 13

Read the following passage and choose the most appropriate answer from A,B,C or D to answer questions.

There are many varieties of spider in the American Southwest, but none receives more respect than the western black widow, Latrodectus Hesperus. This poisonous spider, also called the “hour-glass” or “shoe-button” spider for the shape of the red markings on its abdomen, produces a venom 15 times more powerful than that of a rattlesnake. However, few deaths can be blamed on this insect because bites are rare and only a small amount of poison enters the body.

The female adult black widow may reach a length of 1 ¼ inches, while the smaller male averages ¼ inch long. The adult female has a shiny black bulb-shaped abdomen, which distinguishes it from the male of the species. The male is generally brown with red and white markings on its flat underside.

The female adult deposits its eggs in specially constructed sacs that hold from 50 to 250 eggs. The tiny pale spiderlings hatch within a few months and gradually develop into adults in one to two years. Some females live up to three years. The male does not fare so well, as it sometimes suffers the fate of being consumed by the female after the summer mating season.

1. What does the passage mainly discuss?

A. Varieties of spider in the southwestern U.S.

B. Characteristics of Latrodectus Hesperus

C. Poisonous animals of the American Southwest

D. the abdomens of black widow spiders

2. It can be inferred from the passage that rattlesnakes

A. cause more deaths than black widows

B. do not have markings on their bodies

C. are limited in geographical range

D. have more powerful venom than black widows

3. Which of the following is NOT mentioned in the passage as a difference between a male and female black widow?

A. Its body length B. The shape of its body

C. The potency of its venom D. Its life span

4. In line 7, the word “underside” refers to

A. the portion of the head closest to the ground

B. the legs C. the upper back D. the abdomen

5. According to the passage, the maturation of baby black widow spiders occurs

A. very rapidly B. over a couple of years

C. within several months D. during the summer mating season

Complete the text with the affirmative form of the verbs brackets

Emperor penguins(live) in the Antarctic. The sea (provide)...................all their food, so they are good swimmers. They (dive)................ under the water and (hold)................. their breath for up to 20 minutes. When the weather is very cold, the penguins(stand)................... in a group. This (keep)..................them warm. The Emperor is the only penguin that (breed)............... In winter in Antar ctica. Each female(lay).................... one egg in May or June. They then (return).......................to the sea to feed.Each male then (stand).................... with an eeg on his feet. His feet (keep)......................the egg warm.He(sleep)................ most of the time and (ear)....................... no food for about 65 days. When the egg(hatch)....................., the female (come).................... back and (find)................ her mate. Now the females(feed)..................... the young penguins. The male (spend).................. his time eating. After a few weeks, the male(return).....................to the family, and then both parents (look after).........................the chick.

Cacs bn lm giups mk vs thank you.