Question

СРОЧНО! ДАЮ 20 БАЛЛОВ / РЕШИТЕ ПРИМЕРЫ С ПОДРОБНЫМ РЕШЕНИЕМ a) –6,965 + 23,3; б) 6,2 ∙ (–1,33); в) 53,4 : (–15);г) 60,9 – 88,89; д) 0,78 ∙ (–2,5); e) –16,94 : 2,8;ж) 99 – 9,904; з) –0,016 ∙ 0,25; и) 75 : 1,25.

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Ответ:

А) 16,335

Б) - 82,46

В) - 3,56

Г) - 27,99

Д)-1.95

Е)~-5,89

Ж)89,096

З)-0.004

И)60

Пошаговое объяснение:

А) -6.965+23,3=16,335

Б) 6,2*(-1,33)=-82,46

В) 53,4/(-15)=-3,56

Г) 60,9-88,89=-27,99

Д) 0,78*(-2.5)=-1,95

Е)-16,94/2.8~-5,89

Ж) 99-9,904=89,096

З)-0.016*0.25=-0.004

И) 75/1,25=60

Answer 3

a) –6,965 + 23,3: To add these numbers, we simply combine the integer parts and the decimal parts separately: -6 + 23 = 17 (integer parts) 0.965 + 0.3 = 1.265 (decimal parts) Putting the results together, we have: -6.965 + 23.3 = 17.265

b) 6.2 ∙ (–1.33): To multiply these numbers, we multiply the integer parts and the decimal parts separately: 6 × (-1) = -6 (integer parts) 0.2 × 1.33 = 0.266 (decimal parts) Putting the results together, we have: 6.2 ∙ (–1.33) = -6.266

c) 53.4 : (–15): When dividing by a negative number, we need to remember that dividing by a negative is the same as multiplying by the reciprocal positive value. Therefore: 53.4 ÷ (–15) = 53.4 × (–1/15) = -3.56

g) 60.9 – 88.89: To subtract these numbers, we simply combine the integer parts and the decimal parts separately: 60 - 88 = -28 (integer parts) 0.9 - 0.89 = 0.01 (decimal parts) Putting the results together, we have: 60.9 – 88.89 = -28.01

d) 0.78 ∙ (–2.5): To multiply these numbers, we multiply the integer parts and the decimal parts separately: 0 × (-2) = 0 (integer parts) 0.78 × 2.5 = 1.95 (decimal parts) Putting the results together, we have: 0.78 ∙ (–2.5) = -1.95

e) –16.94 : 2.8: To divide these numbers, we perform the division operation: -16.94 ÷ 2.8 = -6.05

h) 99 – 9.904: To subtract these numbers, we simply combine the integer parts and the decimal parts separately: 99 - 9 = 90 (integer parts) 0 - 0.904 = -0.904 (decimal parts) Putting the results together, we have: 99 – 9.904 = 90.096

z) –0.016 ∙ 0.25: To multiply these numbers, we multiply the integer parts and the decimal parts separately: 0 × 0 = 0 (integer parts) 0.016 × 0.25 = 0.004 (decimal parts) Putting the results together, we have: -0.016 ∙ 0.25 = -0.004

i) 75 : 1.25: To divide these numbers, we perform the division operation: 75 ÷ 1.25 = 60