Question

1) 13×52+48×13=2) 14:12 + 7 ×2 + 2020=3) 576 -[28× 14 - (44 : 11-2)]}-1232=​

Answer 1

Ответ:

1) 13×52+48×13=676+624=1300

2) 14:12+7×2+2020=1.6667+14+2020=2035.66667

3)576-28:14-(44:11-2)-1232=574-2-1232=572-1232=-660

Answer 2

Let's solve these mathematical expressions step by step:

1. 13 × 52 + 48 × 13:

   First, multiply 13 by 52: 13 × 52 = 676. Then, multiply 48 by 13: 48 × 13 = 624. Finally, add these two results together: 676 + 624 = 1300.

So, 13 × 52 + 48 × 13 = 1300.

2. 14 : 12 + 7 × 2 + 2020:

   First, perform the division: 14 ÷ 12 = 1. Then, multiply 7 by 2: 7 × 2 = 14. Finally, add these results together: 1 + 14 + 2020 = 2035.

So, 14 : 12 + 7 × 2 + 2020 = 2035.

3. 576 - [28 × 14 - (44 : 11 - 2)] - 1232:

   First, calculate the expression inside the innermost set of brackets:

   • First, calculate 44 divided by 11: 44 ÷ 11 = 4.
   • Then, subtract 2 from 4: 4 - 2 = 2.
   • Next, calculate 28 × 14: 28 × 14 = 392.
   • Now, subtract the result of the previous step (392) from the result of the step before (2): 2 - 392 = -390.

   Now, plug this result back into the main expression:

   576 - (-390) - 1232.

   • Subtracting a negative number is the same as adding its positive counterpart, so this simplifies to:

   576 + 390 - 1232.

   • Now, add 576 and 390: 576 + 390 = 966.
   • Finally, subtract 966 from 1232: 1232 - 966 = 266.

So, 576 - [28 × 14 - (44 : 11 - 2)] - 1232 = 266.