Question

Ajutatima sa gasesc cifrele care lipsesc:17,?4


+??,5?=105,23 ?,53+6,9?8+20,?27=?0,041 incercati sa gasiti raspunsul

Answer 1

Asemenea exercitii,se rezolva mult mai usor,asezandu-le unele sub altele:

17,?4 +
??,5?
--------
105,23

17,64 +
87,59
--------
105,23


?,53? +
6,9?8
20,?27
-----------
?0,041

7+8+6 = 21; ?=6
2+3+2+7 = 14; ? = 7
1+5+9+5 = 20; ? = 5
2+6+0+2 = 10; ? = 2
2+1 = 3; ? = 3

2,536 +
6,978
20,527
-----------
30,041