Question

4) 0.63*12 +0.9.30 - 25,56; 5) 83 - (17,27*10 -8.93*11); 6) 791.8 - (28,31*40- 580,9), В столбик

Answer 1

Ответ:

4) 7,56 + 27 - 25.56= 34.56-25.56=9

5) 83-(172.7-98.23)=8.53

6) 791.8 - (1132.4-580.9)=240.3

Answer 2

Sure, I can help you solve these mathematical expressions step by step. Let's solve them one by one.

4. $0.63 \times 12 + 0.9 \times 30 - 25.56$:

First, perform the multiplications and then the additions/subtractions:

$0.63 \times 12 = 7.56$

$0.9 \times 30 = 27$

Now, plug these values into the expression:

$7.56 + 27 - 25.56$

$= 9$

5. $83 - (17.27 \times 10 - 8.93 \times 11)$:

First, perform the multiplications and then the subtraction inside the parentheses:

$17.27 \times 10 = 172.7$

$8.93 \times 11 = 98.23$

Now, plug these values into the expression:

$83 - (172.7 - 98.23)$

$= 83 - 74.47$

$= 8.53$

6. $791.8 - (28.31 \times 40 - 580.9)$:

First, perform the multiplication and then the subtraction inside the parentheses:

$28.31 \times 40 = 1132.4$

Now, plug this value into the expression:

$791.8 - (1132.4 - 580.9)$

$= 791.8 - 551.5$

$= 240.3$