In this worksheet, we will practice using bar models to represent and solve additive comparison problems with numbers to 100.

**Q2: **

Samar scored 41 points in a sports competition. Mariam scored 28 points more than Samar.

We want to find out how many points Mariam scored. We can use a part-part-whole diagram to model this problem.

Is Mariam’s score the whole or the other part?

- Athe whole
- Bthe other part

How many points did Mariam score?

**Q4: **

Nada scored 72 points in a sports competition. Nabil scored 19 fewer points than Nada.

We want to find out how many points Nabil scored. We can use a part-part-whole diagram to model this problem.

Is Nabil’s score the whole or the other part?

- Athe other part
- Bthe whole

How many points did Nabil score?

**Q5: **

Select the word problem that can be solved using this part-part-whole diagram.

- AAdel took 31 photos on his holiday. Maged took 17 more photos than Adel. How many photos did Maged take?
- BAdel took 31 photos on his holiday. Maged took 17 fewer photos than Adel. How many photos did Maged take?

**Q6: **

Select the word problem that can be solved using this part-part-whole diagram.

- AHannah has 92 colored pencils. Sophia has 45 fewer colored pencils than Hannah. How many colored pencils does Sophia have?
- BHannah has 92 colored pencils. Sophia has 45 more colored pencils than Hannah. How many colored pencils does Sophia have?

**Q7: **

In the second grade at a school, 41 students have hot lunches. The number of students who have packed lunches is 8 more than the number who have hot lunches.

How many students have packed lunches?

How many students are there in the second grade?

**Q8: **

In a garden, there are 53 roses. There are 19 fewer daffodils than roses.

How many daffodils are there?

How many flowers are in the garden?

**Q9: **

Nada and Mariam were taking photos for an art project. Nada took 11 fewer photos than Mariam. Mariam took 50 photos.

How many photos did Nada take?

How many photos did the girls take altogether?

**Q10: **

Amir, Adel, and Engy were playing a game.

Amir scored 52 points. Adel scored 21 more points than Amir. Engy scored 9 points fewer than Adel. How many points did Engy score?

**Q11: **

Questions which tell you how much more (or less) one amount is compared to another are **additive comparison** problems.

Which of the following is an additive comparison problem?

- ASarah has 3 brothers. Her friend has 2 more brothers than she does. How many brothers does her friend have?
- BSarah has 3 brothers. Her friend has 2 times as many brothers as she does. How many brothers does her friend have?

**Q12: **

Select the problem that can be solved by the addition equation .

- A
In the morning, 26 boats set sail from a harbor. In the afternoon,
**12 more**boats set sail. How many boats are out sailing by the afternoon? - B
In the morning, 26 boats set sail from a harbor. In the afternoon,
**12 times**as many boats set sail than in the morning. How many boats set sail in the afternoon?

**Q13: **

Select the word problem whose answer is .

- A There were 33 strawberries growing in a garden. There were 18 more carrots than strawberries growing in the garden. How many carrots were there?
- B There were 33 strawberries growing in a garden. There were 18 fewer carrots than strawberries growing in the garden. How many carrots were there?

**Q14: **

Bassem started training to join the basketball team. In the first week, he scored a total of 23 baskets. In the second week, he scored 12 more baskets than in the first week.

Should I add or multiply to find the number of baskets he scored in the second week?

- Aadd
- Bmultiply

Why?

- Abecause “12 more” tells us to use addition
- Bbecause “a total of” tells us to use multiplication
- Cbecause “12 more” tells us to use multiplication
- Dbecause “a total of” tells us to use addition
- Ebecause “12 more” tells us to use subtraction