Question

математика 6 класс тест

Answer 1

1. 3/7+1/9 = 27/63+7/63 = 34/63
34/63*63 = 34

2. 20-5/8 = 160/8-5/8 = 155/8
155/8*8 = 155

3. 6 1/3*30 = 19/3*30 = 19*10 = 190

4. 1 1/9*9/10 = 10/9*9/10 = 1

5. 9/10x+1/10x = 50
10/10x = 50
x = 50

Answer 2

10 1/3-9 = 31/3-27/3 = 4/3. Ответ нет.

Answer 3

8) вычислите значение выражения 3 1/5а+а если а=10

Answer 4

4 1/5a = 21/5a = 21/5*10 = 21*2 = 42

Answer 5

в 8) там 3 1/5 ане 4 1/5

Answer 6

3 1/5+1 = 4 1/5