Calcul mental

1. 8x9 = ??
   • 81
   • 72
   • 70
   • 64
2. 54+5 = ?
   • 58
   • 61
   • 59
   • 60
3. 45+6 = ?
   • 60
   • 59
   • 51
   • 61
4. 78+2 = ?
   • 81
   • 80
   • 79
5. 5x0 = ?
   • 5
   • 0
   • 50
   • 500
6. 800-10 = ?
   • 790
   • 810
   • 81
   • 80
7. 25x1 = ?
   • 25
   • 1
   • 250
   • 0

• Created 28/12/2014
• Published 28/12/2014
• Amended 28/12/2014
• Difficulty Easy
• Questions 7
• Theme Scientific

You have the choice between 3 types of design:

• Orange
• Blue
• Light