Уроки математики и физики (RU + UA)

воскресенье, 5 июня 2016 г.

Test 1. Multiplication table

Before proceeding to the solution of examples and problems be sure to read the theoretical part of the lesson 

Multiplication table

 1. The set products when 7 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?

2. The set products when 4 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?


3. The set products when 6 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?

4. The set products when 5 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?

5. The set products when 8 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?

6. The set products when 2 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?

7. The set products when 9 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?

8. The set products when 3 is a factor has some interesting patterns. Can you find the rest of the products without thinking about multiplying?

9. Without using a calculator, evaluate the expression:

{[2(4 + 5) – 2] – 9} + 8.

 а)  18;      b)  13;      
 c)  14;      d)  15.

10. Without using a calculator, evaluate the expression:

4{[2(2 + 5) + 2] – 9}.

 а)  31;      b)  28;      
 c)  22;      d)  25.

11. Without using a calculator, evaluate the expression:

6{[4+ 2(5 + 3)] – 11}.

 а)  54;      b)  61;     
 c)  51;      d)  58.

12. Without using a calculator, evaluate the expression:

8{29 – [2(3 + 7) + 2]}.

 а)  62;      b)  51;      
 c)  56;      d)  54.

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