Question

Помогите решить пожалуйста 450-30×4+70÷10=……… 280÷7+160×5+70=……… 650+350-80÷2×5=……… 180+20×6-75÷25=……… 980-(150+30)÷30=……… 1600+(470-70)×3=……… 400×3-(750-550)×4=……… 820+(1420-1400)×8=……… (860+40)-(560-60)÷100=……… (920-50)+(480+24)÷6=……… 2400-(270+30)×(400-396)=……… 510×6-(780-20)+(230+470)=………

Answer 1

1) 910
2) 800
3) 297
4)  974
5) 2800
6) 

Answer 2

To solve this expression, we need to follow the order of operations, which is known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).

Let's break down each part of the expression and solve step by step:

450 - 30 × 4 + 70 ÷ 10 =

First, we perform the multiplication and division from left to right:

450 - 120 + 7 =

Next, we perform the subtraction and addition from left to right:

330 + 7 =

337

Now, let's continue with the next part of the expression:

280 ÷ 7 + 160 × 5 + 70 =

First, we perform the division:

40 + 800 + 70 =

Next, we perform the addition:

40 + 870 =

910

Continuing with the next part:

650 + 350 - 80 ÷ 2 × 5 =

First, we perform the division:

650 + 350 - 40 × 5 =

Next, we perform the multiplication:

650 + 350 - 200 =

Finally, we perform the addition and subtraction:

1000 - 200 =

800

Moving on to the next part:

180 + 20 × 6 - 75 ÷ 25 =

First, we perform the multiplication and division from left to right:

180 + 120 - 3 =

Finally, we perform the addition and subtraction:

300 - 3 =

297

Continuing with the next part:

980 - (150 + 30) ÷ 30 =

First, we perform the addition and division:

980 - 180 ÷ 30 =

Next, we perform the division:

980 - 6 =

974

Moving on to the next part:

1600 + (470 - 70) × 3 =

First, we perform the subtraction and multiplication:

1600 + 400 × 3 =

Next, we perform the multiplication:

1600 + 1200 =

2800

Continuing with the next part:

400 × 3 - (750 - 550) × 4 =

First, we perform the subtraction and multiplication:

1200 - 200 × 4 =

Next, we perform the multiplication:

1200 - 800 =

400

Moving on to the next part:

820 + (1420 - 1400) × 8 =

First, we perform the subtraction and multiplication:

820 + 20 × 8 =

Next, we perform the multiplication:

820 + 160 =

980

Continuing with the next part:

(860 + 40) - (560 - 60) ÷ 100 =

First, we perform the addition and subtraction:

900 - 500 ÷ 100 =

Next, we perform the division:

900 - 5 =

895

Moving on to the next part:

(920 - 50) + (480 + 24) ÷ 6 =

First, we perform the subtraction and addition:

870 + 504 ÷ 6 =

Next, we perform the division:

870 + 84 =

954

Continuing with the next part:

2400 - (270 + 30) × (400 - 396) =

First, we perform the addition and subtraction:

2400 - 300 × 4 =

Next, we perform the multiplication:

2400 - 1200 =

1200

Finally, let's solve the last part:

510 × 6 - (780 - 20) + (230 + 470) =

First, we perform the subtraction and addition:

3060 - 760 + 700 =

Next, we perform the addition and subtraction:

2300 + 700 =

3000

Therefore, the solution to the given expression is:

337, 910, 800, 297, 974, 2800, 400, 980, 895, 954, 1200, 3000