Дистанційне навчання 2020


     PACE WORK 23\03
 

       

Тема: Парні та непарні числа

             

                                      

Odd Numbers

Any integer that cannot be divided exactly by 2 is an odd number.

The last digit is 1, 3, 5, 7 or 9

Example: −3, 1, 7 and 35 are all odd numbers

Adding and Subtracting

When we add (or subtract) odd or even numbers the results are always:

Even + Even   Even    2 + 4 = 6

Even + Odd    Odd    6 + 3 = 9

Odd + Even    Odd    5 + 12 = 17

Odd + Odd    Even    3 + 5 = 8

(The same thing happens when we subtract instead of adding.)

Multiplying

When we multiply odd or even numbers the results are always:

Even × Even   Even    4 × 8 = 32

Even × Odd    Even    4 × 7 = 28

Odd × Even    Even    5 × 8 = 40

Odd × Odd    Odd    5 × 7 = 35

            

Directions: Tell whether each number is odd or even.

a. 6 _____________        b. 36 _____________

c. 23 _____________      d. 74 _____________

e. 54 _____________      f. 0 _____________

g. 98 _____________      h. 952 _____________

i. 100 _____________     j. 500 _____________

k. 41 _____________      l. 67 _____________

      m. 20 _____________      n. 89 _____________

Circle the odd number in each group.

a. 56 30 45 98 62

b. 87 58 32 26 70

c. 76 94 12 99 4

          d. 46 90 83 22 78

Circle the even number in each group.

a. 31 27 49 1 28

b. 90 43 85 69 3

c. 49 57 62 33 79

           d. 91 77 35 73 4