Task 3. Calculation.
 Find the value of the expression |−4,5|: |−0,05| + �−7 1� ∙ |3,5| .
7
A. 115.
B. 65.
C. -115.
D. -65.
 Task 4. Calculation.
 Find the value of the expression
A. 2.
 B 2 .
 C 2. D.-2
Task 5. Percentage.
What percentage of the number 20 to the number 2000? A. 10%.
B 10000%.
C. 1000%.
D. 100%.
Task 6. Percentage.
If the number 49 is 7% of this number, which is equal to this number? А. 490.
В. 700.
С. 70.
D. 4900.
Task 7. The number of books.
On two shelves of 94 books. When the second regiment shifted from the first 5 books of the shelves, the shelves of books was the same.
Question.How many books on each shelf was originally?
Answer:.
Task 8. Setting the angle bisector.
Build and angle bisectors.
Question1:Is it true that the resulting angle is greater than a given angle?
Answer:.
Question2. Is it true that the resulting angle is less than the given angle?
Answer:.
Question3.Is it true that the resulting angle of 2 twice this angle?
Answer:.
Question4. Is it true that the resulting angle of less than 2 times of the corner?
Answer:.
Task 9. The corners of the triangle.
In the triangle ABC The apex angle is 48 °, adjacent to the angle C is an angle of 102 °.
Question1.What is the value of the angle ACB?
Answer:.
Question2.What is the magnitude of the angle BAC?
Answer:.
Question3.What is the value of the external angle at vertex A?
Answer:.
Question4:What is the value of the external angle at vertex B?
Answer:.
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