Question

Stie careva sa rezolve acceste aexercitii?

Answer 1

1. 24/36=2/3 (am simplificat prin 12)

2. 20%×135=20/100×135=2/10×135=(2×135)/10=270/10=27

3. x/4=15/6→x=(15×4)/6→x=60/6→x=10

4. (-3)-7=(-3)+(-7)=-10

5. 2kg=8lei→1kg=4lei→11kg=44lei

6. nu vad ce scrie

7. nu vad desenul

8. <C=180-(<A+<B)=180°-(80°+45°)=180°-125°=55°

9. 60°