Question

5. Не виконуючи обчислень, порівняйте: 1) рiзницю чисел -5,34 i -12,14 та їхню суму; 2) суму чисел -176 i -35 та суму чисел -19 i 21. Відповідь обґрунтуйте.​

Answer 1

Ответ:

Різниця чисел -5,34 і -12,14 дорівнює:

-5,34 - (-12,14) = -5,34 + 12,14 = 6,8

Сума цих чисел дорівнює:

-5,34 + (-12,14) = -17,48

Отже, різниця цих чисел більша за їхню суму.

Сума чисел -176 і -35 дорівнює:

-176 + (-35) = -211

Сума чисел -19 і 21 дорівнює:

-19 + 21 = 2

Отже, сума першої пари чисел значно менша за суму другої пари чисел.

Answer 2

Calculation 1: Difference and Sum of -5.34 and -12.14

To find the difference between -5.34 and -12.14, we subtract -12.14 from -5.34:

Difference = -5.34 - (-12.14) = -5.34 + 12.14 = 6.8

To find the sum of -5.34 and -12.14, we add them together:

Sum = -5.34 + (-12.14) = -17.48

Calculation 2: Sum of -176 and -35, and Sum of -19 and 21

To find the sum of -176 and -35, we add them together:

Sum = -176 + (-35) = -211

To find the sum of -19 and 21, we add them together:

Sum = -19 + 21 = 2

Explanation

In the first calculation, the difference between -5.34 and -12.14 is 6.8. This means that if we subtract -12.14 from -5.34, we get a positive value of 6.8. The sum of -5.34 and -12.14 is -17.48, which is a negative value.

In the second calculation, the sum of -176 and -35 is -211, which is a negative value. This means that when we add -176 and -35, we get a negative result. On the other hand, the sum of -19 and 21 is 2, which is a positive value.

These calculations demonstrate the basic principles of addition and subtraction with negative numbers. When we add two negative numbers, the result is negative. When we subtract a negative number from another negative number, the result is positive.