KRA 4 MATH

If 0.75 is subtracted by 0.25, what is the result?

• 0.75

• 0.25

• 1.00

• 0.50

Given two decimal fractions, 0.6 and 0.4. What is the result of multiplying these two numbers?

• A. 0.24
  

• B. 0.24
  

• C. 2.4
  

• D. 24

Given two decimal fractions, 4.8 and 0.6. What is the result of dividing these two numbers?

• A. 8
  

• B. 0.8
  

• C. 1.4
  

• D. 2.8

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Question: Proportional Relationships

Given the following pairs of fractions, determine which ones represent proportional relationships between the two variables:

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How many oranges are in the box?

• 60,40,20,0

• 50,30,10,0

• 60,50,40,30

• 0,50,30,10

The angle formed in the following image is ... degrees

• 120

• 90

• 60

• 100

Presented with a text about angles in everyday life, choose the correct statement:

Text: Angles are often encountered in everyday life. For example, the angle between the wall and the floor in a house forms a right angle (90°). On the road, we also often see angles at intersections between two roads. These angles can be sharp or obtuse, depending on the width of the intersection.

Statements:

1. 1. A right angle is always 90° and is often found at wide road intersections.

2. 2. An obtuse angle is an angle that is greater than 90° but less than 180°.

3. 3. An acute angle is an angle that is greater than 90° and less than 180°.

4. 4. Angles can be found in various places, such as between walls and floors, or at road intersections.

Text:

• Acute Angle: An angle that is less than 90°.

• Right Angle: An angle that is exactly 90°.

• Obtuse Angle: An angle that is greater than 90° but less than 180°.

Statement:

1. 1. If the image shows an angle that is less than 90°, then it is an acute angle.

2. 2. If the image shows an angle that is exactly 90°, then it is an obtuse angle.

3. 3. If the angle in the image is greater than 90° but less than 180°, then it is an obtuse angle.

4. 4. The angle shown in the image is a right angle if its measure is exactly 90°.

Text: To measure an angle, we can use a tool called protractor. The protractor has a scale that shows numbers from 0° to 180° on one side. When measuring an angle, we place the protractor at the intersection point of the two lines forming the angle and read the number on the protractor according to the position of the angle-forming lines.

Statement:

1. 1. If the angle formed is greater than 90°, then the protractor will show a number greater than 90°.

2. 2. If the angle is less than 90°, then the protractor will show a number greater than 90°.