Math about more

### 1.1. Knowledge to remember

The solution to the problem has more to do with one quantity than another

### 1.2. Math form

**General math:** The problem requires finding the value of the quantity A, given that A is worth more than B n units.

**Solution method**

– Read and analyze the topic

– Determine the quantity with large and small values, the relationship between the quantities. Usually, to find the value of a large quantity, we often use the addition operation.

– Present the solution to the problem.

– Check the results you just found.

### 1.3. Textbook exercise solution page 24

**Lesson 1**

Draw has 4 flowers, Binh has more than Draw 2 flowers. How many flowers does Binh have?

**Summary**

Draw: 4 flowers bông

More vases than Draw: 2 flowers

The vase has: … flowers?

__Solution method__

To find Binh’s number of flowers, we take Hoa’s number of flowers and add 2.

__Solution guide__

The vase with the number of flowers is:

4 + 2 = 6 (flower)

Answer: 6 flowers.

Lesson 2

Nam has 10 marbles, Bao has 5 more marbles than Nam. How many marbles does Bao have?

**Summary**

Male has: 10 marbles

Bao is more than Nam : 5 marbles

Bao has: … marbles?

__Solution method__

To find Bao’s number of marbles, we take Nam’s number of marbles and add 5.

__Solution guide__

Bao has the number of marbles:

10 + 5 = 15 (balls)

Answer: 15 marbles.

lesson 3

Plum is 95cm tall, Peach is 3cm taller than Plum. How many centimeters tall is Dao?

__Solution method__

**Summary**

Plum: 95cm

Peach is taller than Plum: 3cm

Peach: …cm?

**The answer**

To find the solution, we take Plum’s height plus 3cm.

__Solution guide__

The number of centimeters to dig is:

95 + 3 = 98 (cm)

Answer: 98 cm.

### 1.4. Solving Textbook Exercises page 25

Lesson 1

In the cup there are 6 pencils, in the box there are more than in the cup 2 pencils. How many pencils are in the box?

__Solution method__

**Summary**

Cup: 6 pencils

The box is more than the cup: 2 pencils

Pencil case?

**The answer**

To find the solution we take the number of pencils in the cup plus 2 more pencils.

__Solution guide__

The number of pencils in the box is:

6 + 2 = 8 (pencil)

Answer: 8 pencils.

Lesson 2

Solve the problem according to the following summary:

I have: 11 postcards

Binh is more than An: 3 postcards

Binh has: … postcards?

__Solution method__

To find the solution, we take An’s postcard number plus 3 more postcards.

__Solution guide__

The jar has the postcard number:

11 + 3 = 14 (postcard)

Answer: 14 postcards.

lesson 3

__Solution method__

To find the number of people in team 2, we take the number of people in team 1 and add 2 people.

__Solution guide__

Team 2 has the number of people:

15 + 2 = 17 (person)

Answer: 17 people.

Lesson 4

Line segment AB is 10cm long, line segment CD is 2cm longer than line segment AB.

a) How many centimeters long is the line segment CD?

b) Draw line segment CD

__Solution method__

a) To find the solution we take the length of line segment AB plus 2cm.

b) Using a ruler and pencil, draw a line segment CD with the length found in question a.

__Solution guide__

a) The length of line segment CD is:

10 + 2 = 12 (cm)

Answer: 12cm.

b) Using a ruler with centimeter divisions, mark one point at the 0 line, one point at the 12 mark, and then connect it with a straightedge and pencil.

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