Test 2. Rounding numbers

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

Rounding numbers

Write true of false for each statement below.

 1. 32751 = 32000 (to 2 s. f.).

 а)  ;      b)  F;     

 c)  ;      d)  T.

 2. 81768 = 80000 (to 1 s. f.).

 а)  T;      b)  ;     

 c)  F;      d)  .

 3. 472.23 = 480 (to 2 s. f.)

 а)  T;      b)  ;     

 c)  F;      d)  .

 4. What is the smallest number that will round to 820 when rounded to the nearest 10?

 а)  816;      b)  821;     

 c)  810;      d)  815.

 5. What is the largest whole number that will round to 2700 when rounded to the nearest 100?

 а)  2748;      b)  2749;     

 c)  2709;      d)  2759.

3.5178924 is 4 to the nearest whole number because the fist digit after the decimal point is 5 or more so round up.

 6. Round each of these numbers to the nearest whole number

5.07213

 а)  5;      b)  2;     

 c)  4;      d)  3.

 7. Round each of these numbers to the nearest whole number

3.631089

 а)  1;      b)  5;     

 c)  4;      d)  2.

 8. Round each of these numbers to the nearest whole number

12.941628

 а)  11;      b)  13;     

 c)  12;      d)  14.

 9. Round each of these numbers to the nearest whole number

17.718253

 а)  19;      b)  17;     

 c)  16;      d)  18.

10. Round each of these numbers to the nearest whole number

11.31874

 а)  11;      b)  10;     

 c)  12;      d)  14.

11. Round each of these numbers to the nearest whole number

34.278914

 а)  35;      b)  33;     

 c)  34;      d)  32.

12. Round each of these numbers to the nearest whole number

0.825164

 а)  0.9;      b)  1;     

 c)  0.8;      d)  2.