Test 3
1. 7/4
2. 4/7, 14/25, 28/33
3. 5/5 = 1
14/7 = 2
4. 390 : 13 × 7 = 30 × 7 = 210
5. x = 0, 2, 4, 6, 8
5 numere
6. x = 39 + 21
x = 60 - 60/30 = 2
7. x = 0 - 0 + 3 < 5
x = 1 - 1 + 3 < 5
x = 2 - 2 + 3 = 5
Test 4
1. 3/2, 3/4, 3/5, 3/8, 3/11
2. 8/4, 25/14, 17/13
3. a) 28/14 = 2
b) 14/14 = 1
4. 640 : 8 × 5 = 80 × 5 = 400
5. 7/11 = x/99
⁹7/11 = 63/99
x = 63
