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- Question 1 of 10
##### 1. Question

Fill in the box with an appropriate answer.

IncorrectCorrect2 + 3 + 4 =

Yes, you’re right!

**Explanation:**We can add any two numbers first.

Then, 2 + 3 = 5 [Add]

Now, let’s add this 5 to 4

5 + 4 = 9 [Result]

**Hence, 2 + 3 + 4 = 9.**Oops! Keep trying.

**Explanation:**We can add any two numbers first.

Then, 2 + 3 = 5 [Add]

Now, let’s add this 5 to 4

5 + 4 = 9 [Result]

**Hence, 2 + 3 + 4 = 9.**##### Hint

You can add any two numbers first.

- Question 2 of 10
##### 2. Question

Fill in the box with the right answer.

IncorrectCorrect7 + 8 + 9 =

Woohoo! You’ve got the right answer.

**Explanation:**We can add any two numbers first.

Then, 7 + 8 = 15 [Add]

Now, let’s add this 15 to 9

15 + 9 = 24 [Result]

**Hence, 7 + 8 + 9 = 24**Uh-oh, please try again.

**Explanation:**We can add any two numbers first.

Then, 7 + 8 = 15 [Add]

Now, let’s add this 15 to 9

15 + 9 = 24 [Result]

**Hence, 7 + 8 + 9 = 24**##### Hint

You can add any two numbers first.

- Question 3 of 10
##### 3. Question

Fill in the box with the correct answer.

IncorrectCorrect11 + 12 + 13 =

Great job!

**Explanation:**We can add any two numbers first.

Then, 11 + 12 = 23 [Add]

Now, let’s add this 23 to 13

23 + 13 = 36 [Result]

**Hence, 11 + 12 + 13 = 36**You’re almost there.

**Explanation:**We can add any two numbers first.

Then, 11 + 12 = 23 [Add]

Now, let’s add this 23 to 13

23 + 13 = 36 [Result]

**Hence, 11 + 12 + 13 = 36**##### Hint

You can add any two numbers first.

- Question 4 of 10
##### 4. Question

James has two toy planes. Jack has two toy planes more than James. How many toy planes does Jack have?

IncorrectCorrectWoohoo! Great job.

**Explanation:**As mentioned, number of toy planes James has = 2

It is mentioned that Jack has 2 toy planes more than Jack.

That is,

2 + 2 = 4

**Hence, Jack has 4 toy planes.**Don’t give up.

**Explanation:**As mentioned, number of toy planes James has = 2

It is mentioned that Jack has 2 toy planes more than Jack.

That is,

2 + 2 = 4

**Hence, Jack has 4 toy planes.**##### Hint

Use bar model.

- Question 5 of 10
##### 5. Question

In an exam, Kiki scores 4 marks more than Kino. And Kino’s score is 8. How many marks does Kiki score in the exam?

IncorrectCorrectFantastic!

**Explanation**:Woohoo! Great job.

Explanation:

Marks scored by Kino = 8

Marks scored by Kiki = 4 more than Kino

= 4 + 8 [Add]

= 12 [Result]

**Therefore, Kiki scored 12 marks in the exam.**Don’t give up! Keep trying.

**Explanation:**Marks scored by Kino = 8

Marks scored by Kiki = 4 more than Kino

= 4 + 8 [Add]

= 12 [Result]

**Therefore, Kiki scored 8 marks in the exam.**##### Hint

Use bar model.

- Question 6 of 10
##### 6. Question

Ryan has 7 toys, Reese has 4, and Ross has 9. How many toys are there in total?

IncorrectCorrectAwesome! You did a great job.

**Explanation:**Number of toys Ryan has = 7

Number of toys Reese has = 4

Number of toys Ross has = 9

Then, total number of toys = 7 + 4 + 9 [Add]

= 11 + 9 [Add any two numbers]

= 20 [Result]

**Thus, there are 20 toys in total.**Uh-oh. Please try again.

**Explanation:**Number of toys Ryan has = 7

Number of toys Reese has = 4

Number of toys Ross has = 9

Then, total number of toys = 7 + 4 + 9 [Add]

= 11 + 9 [Add any two numbers]

= 20 [Result]

**Thus, there are 20 toys in total.**##### Hint

First, find the sum of toys owned by any two persons.

- Question 7 of 10
##### 7. Question

In a notebook, 9 pages are filled and 6 are blank. How many pages are there in the notebook in total?

IncorrectCorrectGreat job!

**Explanation:**Number of pages filled = 9

Number of blank pages = 6

Total number of pages = 9 + 6

= 15

**Thus, there are 15 pages in the book.**Oops!

**Explanation**:Number of pages filled = 9

Number of blank pages = 6

Total number of pages = 9 + 6

= 15

**Thus, there are 15 pages in the book.**##### Hint

Together, the filled and blank pages gives the total pages.

- Question 8 of 10
##### 8. Question

What will be the value of 12 + 1 + 3 ?

IncorrectCorrectWonderful!

**Explanation:**We can add any two numbers first.

Then, 12 + 1 = 13 [Add]

Now, let’s add this 13 to 3.

13 + 3 = 16 [Result]

**Hence, 12 + 1 + 3 = 16.**Better luck next time!

**Explanation:**We can add any two numbers first.

Then, 12 + 1 = 13 [Add]

Now, let’s add this 13 to 3.

13 + 3 = 16 [Result]

**Hence, 12 + 1 + 3 = 16.**##### Hint

You can add any two numbers first.

- Question 9 of 10
##### 9. Question

Match the following expressions with their appropriate result.

IncorrectCorrect- 23
- 20
- 29

- 11 + 7 + 5
- 2 + 12 + 6
- 13 + 15 + 1

You’ve done a great job!

**Explanation:**11 + 7 + 5 = 23

2 + 12 + 6 = 20

13 + 15 + 1 = 29

You’re almost there!

**Explanation:**11 + 7 + 5 = 23

2 + 12 + 6 = 20

13 + 15 + 1 = 29

##### Hint

You can add any two numbers first.

- 23
- Question 10 of 10
##### 10. Question

In a playground, there are 12 orange and 11 black colored soccer balls. Which of the following equations shows the total number of soccer balls?

IncorrectCorrectFabulous!

**Explanation:**Number of orange-colored balls = 12

Number of black-colored balls = 11

Total number of balls = 12 + 11 [Add]

= 23 [Result]

**Hence, there are 23 balls in the playground.**Keep trying!

**Explanation:**Number of orange-colored balls = 12

Number of black-colored balls = 11

Total number of balls = 12 + 11 [Add]

= 23 [Result]

**Hence, there are 23 balls in the playground.**##### Hint

Together, the orange and black-colored balls gives the total count.