**Option 1**

- Find the value of the expression:

324 + 189 – 205 + 18 =

56 : 7 * 3 : 4 =

180 – 81: 9 + 6 * 4 =

16 : (15 – 11) + 48 : 8 =

- Compare the expressions:

3* 8 – 20 : 4

(3 *8 – 20) : 4

30 + 36 + 4

30 + (36 + 4)

12 : (6 * 2)

12 : 6 * 2

- Insert the signs of the equations to make a valid equality:

2 6 3 = 4

- Solve the problem:

The canteen used up 18 kg of rice and half as much buckwheat as rice. The number of millet used is the same as the number of rice and buckwheat. How many kilograms of millet were used?

- Solve the equations:

X + 315 =582

72 : Y = 8

**Option 2**

- Find the value of the expression:

415 – 226 + 107 – 29 =

63 : 7 * 2 : 6 =

72 : 9 + 319 – 8 * 7 =

3 * (6 + 3) – 36 : 6 =

- Compare the expressions:

(3* 6 – 8) : 2

3 * 6 – 8 : 2

20 + 17 + 3

20 + (17 + 3)

16 : 4 * 2

16 : (4 * 2)

- Insert the signs of the equations to make a valid equality:

4 4 4 = 12

- Solve the problem:

On Saturday 24 readers visited the library, and on Sunday there were three times fewer readers than on Saturday. As many readers visited the library on Monday as there were on Saturday and Sunday together. How many readers were in the library on Monday?

- Solve the equations:

Y – 104 = 289

5 * X =35