среда, 1 июня 2016 г.

Test 1. Multiplying natural numbers

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

Multiplying natural numbers

 1. Solve:
 а782;      b796;     
 c)  792;      d802.

 2. Solve:
 а)  649;      b659;     
 c640;      d637.

 3. Solve:
 а2822;      b2834;     
 c2802;      d)  2812.

 4. Solve:
 а1927;      b)  1917;     
 c1911;      d1907.

 5. Calculate:

48 × 19.

 а902;      b914;     
 c922;      d)  912.

 6. Calculate:

15 × 55.

 а815;      b)  825;     
 c820;      d821.

 7. Calculate:

66 × 39.

 а2584;      b2572;     
 c)  2574;      d2554.

 8. Calculate:

44 × 83.

 а)  3652;      b3632;     
 c3656;      d3654.

 9. Calculate:

6 + (6 – 2) × 6.

 а28;      b32;     
 c24;      d)  30.

10. Write an expression for the calculation adds 5 and 6 and then multiply by 3.

 а(5 + 3)6;     
 b)  (5 + 6)3;     
 c(3 + 6)5;     
 d(5 – 6)3.

11. Write an expression for the calculation adds 3 and 8 and then multiply by 9.

 а(3 – 8)9;     
 b(3 + 9)8;     
 c)  (3 + 8)9;     
 d(9 + 8)3.

12. Write an expression for the calculation adds 34 and 6 and then multiply by 3.

 а(34 + 3)6;     
 b(34 6)3;     
 c(3 + 6)34;     
 d)  (34 + 6)3.

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