Question

Выполните действия a) 245+35х18, б) (87+35)x25, в) 10 260 : 36 + 164, г) 52 998 : (37+ 29)

Answer 1

A)
245+35×18=630
б)
(87+35)×25=3050
в)
10260:36+164=321
г)
52998:(37+29)=803

Answer 2

a) 245 + 35 * 18: To solve this expression, we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right). In this case, we have multiplication and addition.

First, we perform the multiplication: 35 * 18 = 630. Then, we add 245 to the result: 245 + 630 = 875.

Therefore, the value of the expression 245 + 35 * 18 is 875.

b) (87 + 35) * 25: Again, we need to follow the order of operations. In this case, we have parentheses and multiplication.

First, we perform the addition inside the parentheses: 87 + 35 = 122. Then, we multiply the result by 25: 122 * 25 = 3050.

Therefore, the value of the expression (87 + 35) * 25 is 3050.

c) 10 + 260 : 36 + 164: In this expression, we have addition and division.

First, we perform the addition: 10 + 260 = 270. Then, we perform the division: 270 : 36 = 7.5. Finally, we add 164 to the result: 7.5 + 164 = 171.5.

Therefore, the value of the expression 10 + 260 : 36 + 164 is 171.5.

d) 52 + 998 : (37 + 29): In this expression, we have addition and division.

First, we perform the addition inside the parentheses: 37 + 29 = 66. Then, we perform the division: 998 : 66 = 15.12121212 (rounded to 8 decimal places). Finally, we add 52 to the result: 52 + 15.12121212 = 67.12121212 (rounded to 8 decimal places).

Therefore, the value of the expression 52 + 998 : (37 + 29) is approximately 67.12121212.