Question

Obliczcie to proste:
15-5*1 1/2+3:1/3=
5,28*3,12-11,28=
7:5=
11 3/10+a=16 1/5 a=??
3 2/5:34+5:2 1/2=
PAMIĘTAJCIE O KOLEJNOŚCI ZADAN!!
Z GÓRY DZIĘKI!!;**

Answer 1

1. 15 - 5 * 1 1/2 * 3 : 1/3 = 15 -7,5 + 1= 7,5
2. 5,28 * 3, 12 - 11,28 = 16, 4736 - 11,28 = 5, 1936
3. 7 : 5 = 1, 4
4.11,3 + a = 16,2 * a
a = 16,2 a - 11,3
5. 3, 4 : 34 + 5 : 2,5 = 0,1 + 2 = 2,1

Answer 2

15-5*1 1/2+3:1/3= 15 - 7.5 + 9 = 16.5

5,28*3,12-11,28= 16.47 - 11.28 = 5.18

7:5= 7/5 = 1 2/7

11 3/10+a=16 1/5 a = 16 1/5 - 11 3/10 a = 4 9/10

3 2/5:34+5:2 1/2 = 0.1 + 2 = 2.1