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Match the mathematical words and symbols.

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+

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-

Multiply

x

Divide

÷

Greater
than

>

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than

<

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It's a match!

What's the problem?

Nature: level 2

You've been invited onto a game show that will test your maths skills.

You have to solve some tricky word problems on nature to win!

Contestant_booth

Welcome to What's the problem?

See if you can win by solving three word problems. You have to choose the correct steps to solve them. Step into the booth to start!

Close the Steps when you are ready.

Then select Problem 1 to start.

Question 1

What do you need to find out to solve the problem?

Question 2

What calculation can you carry out to solve this problem?

What do you need to do to solve the problem?

Question 3

What is the answer to the calculation?

Question 3

1

Work out how many times longer the adult crocodile is than the baby crocodile.

What calculation can you carry out?

Question 4

1

Divide the length of
the adult crocodile by the length of the baby crocodile.

What is the answer to the calculation?

Question 5

2

Then multiply the length
of an infant by this number (20).

What calculation can you carry out?

Question 6

2

Length of human baby x 20

What is the answer to the calculation?

Question 4

Question 7

How can you word the answer as a statement?

Question 4

Question 5

Question 6

  • Multiply the number of rows by the number of trees in each row.
  • Then multiply the number of trees by their height.
  • Number of trees x height of trees

What is the answer to the calculation?

What calculation can you carry out?

What's the problem?
Your score

0

Highest score

105

Our panel will help you try to solve the problem. You must decide who is right.

First, select Steps to see the four stages of solving a problem.

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Choose a category for Problem 1.

Choose a category for Problem 2.

Over to you! For 10 points decide who is correct, then select their buzzer.

Good choice!

Well done!

Yes!

You've scored points.

Good answer!

You've scored points.

Now try your luck with Problem 2.

Time for Question 2!

Decide who is correct, then select their buzzer.

Now work out the answer!

Then select the correct buzzer.

Finally, select the buzzer for the statement that gives the full answer in words.

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Try again!

Make sure you read the problem carefully.

That wasn't correct.

You need to find out how much taller the Eiffel Tower is than the sequoia tree.

Subtract the height of
the sequoia tree from the height of the Eiffel Tower.

You need to find out how much one African bull elephant weighs.

Divide the weight of the blue whale by 26.

That's not correct.

Use the calculator to help you and try again.

Try again!

What were you trying to find out?

Sorry! The panel will show you the correct answer.

Better luck in Problem 2!

Wrong choice! Your calculation shows that the answer is 240m.

Wrong choice! Your calculation shows that the answer is 5 t.

Select Question 4 for the final part of the problem.

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OK, here we go! For each problem, our panel will give you options to choose from. Decide who is correct.

Start with Question 1.

10

points

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Ready to roll! For each problem, our panel will give you options to choose from. Decide who is correct.

Start with Question 1.

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Choose a category for Problem 3.

Over to you! For 10 points decide who is correct, then select their buzzer.

Correct answer!

Exactly!

That's right!

You've scored points.

Time for Question 2!

Decide who is correct, then select their buzzer.

You got it!

Now try the last problem in this round.

Now work out the answer!

Then select the correct buzzer.

Now work out the first part of the answer!

Then select the correct buzzer.

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Try again!

Make sure you read the problem carefully.

That wasn't correct.

You need to find out how many days it would take kelp to grow to a length of 60 m.

Divide 60 m by the length the kelp grows in one day.

You need to find out the wingspan of the flying dinosaur.

Divide the wingspan of the jumbo jet by 5.

That's not correct.

Use the calculator to help you and try again.

Wrong choice! Your calculation shows that the answer is 125 days.

Wrong choice! Your calculation shows that the answer is 12 m.

Select Question 4 for the final part of the problem.

Try again!

What were you trying to find out?

Sorry! The panel will show you the correct answer.

Take your chances with Problem 3!

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10

points

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The last problem is the most challenging! More questions are needed to solve it.

Start with Question 1.

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What is the first calculation you need to do to solve the problem?

What is the second calculation you need to do to solve the problem?

Over to you! For 10 points decide who is correct, then select their buzzer.

Finally, select the buzzer for the statement that gives the full answer in words.

Your score wasn't high enough to win, but you won't go home empty- handed. You win a T-shirt signed by our panel!

Thanks for helping to solve word problems on
What's the problem?

Congratulations! With your score, you win 100 free rides in the wildest-ever theme park!

Thanks for helping to solve word problems on What's the problem?

Spot on!

Bravo!

Well done!

Excellent!

Correct!

Great!

You've scored points.

Correct answer!

That's the end of the round! Let's see what your prize is.

Decide how you can work this out.

Who is correct?

Now work out the first part of the answer!

Now work out the answer!

Then select the correct buzzer.

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Try again!

Make sure you read the problem carefully.

That not correct.

Read the problem carefully and try again.

That wasn't correct.

Multiply the number of rows by the number of trees in each row.

Calculate the number of trees times the height of the trees.

First workout how many pine trees there are. Then multiply the number of trees by their height.

You need to find out how tall an adult human would be if it grew in the same proportion as a Nile crocodile.

First workout how many times longer the adult crocodile is than the baby crocodile. Then multiply the length of the human baby by this number.

Divide the length of the adult crocodile by the length of the baby crocodile.

Calculate the length of the human baby times 20.

That's not correct.

Use the calculator to help you and try again.

Try again!

What were you trying to find out?

Sorry! The panel will show you the correct answer.

That's the end of the round! Let's see what your prize is.

That's not it! Your calculation shows that the answer is 5040.

Select Question 5 to continue.

That's not it! Your calculation shows that the answer is 151 200 m.

Select Question 7 to continue.

That's not it! Your calculation shows that the answer is 20.

Select Question 5 to continue.

That's not it! Your calculation shows that the answer is 1000 cm.

Select Question 7 to continue.

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10

points

How much taller is the Eiffel Tower than the sequoia tree?

correct

How much taller than the Eiffel Tower is the sequoia tree?

wrong

How much trees equal the height of the Eiffel Tower?

wrong

Subtract the height of the tower from the height of the tree.

wrong

Subtract the height of the tree from the height of the tower.

correct

Add the height of the tree to the height of the tower.

wrong

-240 m

wrong

408 m

wrong

240 m

correct

The Eiffel Tower is 240 m taller than the sequoia tree.

correct

The sequoia tree is 240 m taller than the Eiffel Tower.

wrong

The answer is 240 m.

wrong

How many days would it take for the kelp to grow 60m?

correct

How many days would it take for the kelp to grow 48cm?

wrong

How long is giant kelp when it is fully grown?

wrong

Divide 60cm by 48.

wrong

Divide 60 m by the length the kelp grows in one day.

correct

Multiply 60 m by the length the kelp grows in one day.

wrong

12.5 days

wrong

1.25 days

wrong

125 days

correct

The kelp would take 125 days to grow to a length of 60 m.

correct

About 125 days.

wrong

The answer is 125 days.

wrong

What is the total length of all the timber poles that can be cut from the plantation?

correct

How tall is a pine tree when it is cut down to make a pole?

wrong

How many pine trees are growing in the plantation?

wrong

  • Divide number of rows by number of trees in each row.
  • Then multiply the number of trees by length of the row.

wrong

  • Work out how many pine trees there are.
  • Then multiply the number of trees
    by their height.

correct

  • Find out how many pine trees are in a row.
  • Then multiply this by the height of a pine tree.

wrong

Divide the number of trees in each row by the number of rows

wrong

Add the number of trees in each row to the number of rows.

wrong

Multiply the number of rows by the number of trees in each row.

correct

5040

correct

10080

wrong

4050

wrong

Number of trees ÷ height of trees

wrong

Number of trees x height of trees

correct

Number of trees + height of trees

wrong

3360 m

wrong

1350 m

wrong

151 200 m

correct

The total length of all the timber poles that can be cut from the plantation is 151 200 m.

correct

The poles are 151 200-m long.

wrong

Around 151 200 m.

wrong

Bye!

How much does one African bull elephant weigh?

correct

How much do 26 African bull elephants weigh?

wrong

How much do 26 blue whales weigh?

wrong

Divide the weight of the 26 African elephants by 26.

wrong

Divide the weight of the blue whale by 26.

correct

Multiply the weight of the blue whale by 26.

wrong

0.5 t

wrong

50 t

wrong

5 t

correct

One African bull elephant weighs about 5 tonnes.

correct

Around 5 tonnes.

wrong

The answer is 5 tonnes.

wrong

What was the wingspan of the flying dinosaur?

correct

What is five times the wingspan of a flying dinosaur?

wrong

How much longer is the wingspan of the jumbo jet?

wrong

Multiply the wingspan of the jumbo jet by 5.

wrong

Divide the wingspan of jumbo jet by 5.

correct

Add 5 m to the wingspan of the jumbo jet.

wrong

14.4 m

wrong

5 m

wrong

12 m

correct

The wingspan of the flying dinosaur was 12 m.

correct

The wingspan of the dinosaur was 12 m less than the jet.

wrong

The answer is 12 m.

wrong

How tall would an adult human be if it grew in the same proportion as a Nile crocodile?

correct

How tall is an adult human?

wrong

How much longer is a human baby than a baby crocodile?

wrong

  • Find out how
    much the baby crocodile has grown.
  • Then add this length to the length of
    the human body.

wrong

  • Work out how many times longer the adult crocodile is than
    the baby crocodile.
  • Then multiply the length of the infant
    by this number.

correct

  • Work out how much longer the human baby is.
  • Then divide this number into the length of the crocodile.

wrong

Divide the length of the baby crocodile by the length of the adult crocodile.

wrong

Subtract the length of the baby crocodile from the length of the adult crocodile.

wrong

Divide the length of the adult crocodile by the length of the baby crocodile.

correct

20

correct

0.05

wrong

0.2

wrong

Length of human baby ÷ 20

wrong

Length of human baby x 20

correct

Length of human baby + 20

wrong

100 cm

wrong

500 cm

wrong

1000 cm

correct

If it grew in the same proportion as a Nile crocodile, the adult human would be 1000-cm tall.

correct

The answer is 1000 cm.

wrong

The adult human is 1000-cm tall.

wrong

Bye!

The calculation you entered is not correct.

The calculation is still not correct.

To see the correct calculation, select Show me.

Height of Eiffel Tower
_
Height of sequoia

=

m

_

m =

240 m
Length of kelp (in cm)
÷
Length kelp grows in a day

=

cm

÷

cm

=

125 days
Number of trees =
Number of rows
x
Trees in each row

=

x

=

5040
Number of trees
x
Height of trees

=

5040
x

m

=

151 200 m
Weight of blue whale
÷  26

=

t

÷
26

=

5 t
Wingspan of jumbo jet
÷  5

=

m

÷
5

=

12 m
Number of times longer adult crocodile is than baby crocodile =
Length of adult crocodile
÷
Length of baby crocodile

=

cm
÷
cm

=

20
Length of human baby
x  20

=

cm

x
20

=

1000 cm
Problem categories

1

2

Plants

Animals

Problem 1: plants

In the United States, there is a giant sequoia tree that is 84-meters tall. The Eiffel Tower in Paris is 324-meters tall.

How much taller than the sequoia tree is the Eiffel Tower?

Problem 2: plants

Pacific giant kelp (a seaweed) can grow 48 centimetres in just one day. Some giant kelp grow to a length of 60 metres.

How many days would it take for the kelp to grow this long?

Problem 3: plants

In the Perfect Pine plantation, there are 45 rows of pine trees. Each row has 112 trees.

When a tree is 30 metres tall, it is cut down to make a timber pole. What is the total length of all the timber poles that can be cut from the plantation?

Problem 1: animals

A 130-tonne blue whale weighs about the same as 26 male African elephants.

If all the elephants weighed the same amount, how much would one African bull elephant weigh?

Problem 2: animals

The wingspan of a jumbo jet is 60 metres. That's five times the wingspan of a flying dinosaur that lived about 72 million years ago.

What was the wingspan of the flying dinosaur?

Problem 3: animals

At birth, a Nile crocodile is about
25-centimetres long. It can grow to become a 500-centimetre-long adult.

If a 50-centimetre-long human baby grew in the same proportion, how tall would the adult human be?

Shirt Roller_coaster
Problem-solving steps
  • What do I need to find out?
  • What calculation can I carry out
    to solve the problem?
  • What is the numerical answer?
  • How do I word this answer as a statement?
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