Question

470 – (500 – 25*3) (300 + 160 : 4):2 500 + (400 – 160 + 40) (870 – 240*3): 5помогите решить примеры плиз ​

Answer 1

Ответ:

1.470-(500-25×3) =45

1) 25×3=

2) 500-75=425

3) 470-425=45

2.(300+160:4) :2=170

1) 160:4=40

2) 300+40=340

3) 340:2=170

3.500+(400-160+40) =780

1) 400-160=240

2) 240+40=280

3) 500+280=780

4.(870-240×3):5=30

1) 240×3=720

2) 870-720=150

3) 150:5=30

Answer 2

1) 45. 2)170. 3)780. 4)30

Answer 3

To solve the given expressions, let's break them down step by step:

1. Expression: 470 – (500 – 25 * 3) To solve this expression, we need to follow the order of operations, which is parentheses, multiplication/division (from left to right), and addition/subtraction (from left to right).

First, let's simplify the expression inside the parentheses: 500 – 25 * 3 = 500 – 75 = 425

Now, we can substitute the simplified expression back into the original expression: 470 – 425 = 45

Therefore, the value of the expression 470 – (500 – 25 * 3) is 45.

2. Expression: (300 + 160 : 4) : 2 + 500 Again, let's follow the order of operations.

First, let's simplify the division inside the parentheses: 160 : 4 = 40

Now, we can substitute the simplified expression back into the original expression: (300 + 40) : 2 + 500 = 340 : 2 + 500 = 170 + 500 = 670

Therefore, the value of the expression (300 + 160 : 4) : 2 + 500 is 670.

3. Expression: 500 + (400 – 160 + 40) + (870 – 240 * 3) : 5 Again, let's follow the order of operations.

First, let's simplify the multiplication inside the second parentheses: 240 * 3 = 720

Now, let's simplify the addition inside the second parentheses: 400 – 160 + 40 = 240 + 40 = 280

Now, let's simplify the division inside the second parentheses: 870 – 720 : 5 = 870 – 144 = 726

Now, we can substitute the simplified expressions back into the original expression: 500 + 280 + 726 : 5 = 500 + 280 + 145.2 = 925.2

Therefore, the value of the expression 500 + (400 – 160 + 40) + (870 – 240 * 3) : 5 is 925.2.

I hope this helps! Let me know if you have any further questions.