Самостійна робота 13

100 : 7 ⋅ 10 = 140

100 : 10 ⋅ 7 = 70

100 : 7 ⋅ 10 = 10

100 : 10 ⋅ 7 = 10

Для знаходження площі фігури потрібно використати формулу S = a⋅b

В усіх фігур можна знайти площу за формулою.

Накласти палетку. Порахувати кількість заповнених клітинок.

Накласти палетку. Порахувати кількість повних клітинок. Порахувати кількість неповних клітинок і розділити на 2. Додати знайдені площі.

2 ⋅ 2⋅ 2 = 6

3 ⋅ 3 = 9

2 ⋅ 2⋅ 2 = 8

3 ⋅ 3 = 6

8 ⋅ 8 = 64

2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2 = 512

8 ⋅ 8 = 72

8 ⋅ 8 = 56

24 : 5 ⋅ 24 = 115

24 : 24 ⋅ 5 = 5

24 : 24 ⋅ 5 = 1

24 : 5 ⋅ 24 = 116

24 : 2 ⋅ 8 = 96

24 : 8 ⋅ 12= 36

24 : 2 ⋅ 8 = 94

24 : 8 ⋅ 12= 26

3 ⋅ 3 = 9

1 ⋅ 1 ⋅ 1 = 1

3 ⋅ 3 ⋅ 3 = 27

1 ⋅ 1 ⋅ 1 = 3

90 : 6 ⋅ 15 = 225

90 : 15 ⋅ 6 = 360

90 : 6 ⋅ 15 = 125

90 : 15 ⋅ 6 = 36

6

16

32

8

28

42

40

27

5 ⋅ 5 = 25

2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2 = 32

5 ⋅ 5 = 20

2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2 = 22