Today is . WELCOME: htq777/44656  Home | Reg LoginAll user | setHomePage | Bookmark  
Home | Math Test Online | Addition | Subtraction | Multiplication | Division | Time | Worksheet(JPG/PDF) | CAI | Flash Games | 
 Recommendation article
 Article search
 
 Home--maths--First Grade--Adding Tens

Adding Tens

Adding Tens

How to add two-digit numbers (for example 40 + 50).

  • Place one number above the other so the tens' place digits and ones' place digits are lined up. Draw a line under the bottom number.
    40
    50
    
  • Add the two ones' place digits. (0 + 0 = 0). Place the zero below the line in the ones' place column.
    40
    50
     0
    
  • Add the numbers in the tens' place column (4 + 5 = 9) and place the answer below the line and to the left of the ones' place sum
    40
    50
    90

Find the Sum of the two Numbers.

  =    




2006-10-02 20:05:47
Viewed 1996 times Close
Math Test Online Greatmathsites

Translate

Arabic  Chinese  French  German  Italian  Japanese  Korean  Portuguese  Spanish

Feedback
Thank you to online math channels' Mathematics Department for hosting these lessons.
Copyright © 2006 - 2008 GZtrain Inc. All Rights Reserved