Young Einstein Mathematics Educational Software Contents

Activity Number 23

Heading : Adding 2 Digit Numbers - No Carry

Description : Adding two 2 digit numbers with no carry involved

Aim/Questions : Add the numbers together.

Educational software theory used:

Adding 2 Digit Numbers - No Carry

When adding two numbers that have a mixture of ones and tens in the number you need to do 2 sums.

1.  Firstly add the ones units

2.  Then add the tens tens

Eg

 12

+34

First add the ones units by adding the 2 and 4 together to get 6

 12

+34

  6

Then add the tens units by adding the 1 and 3 together to get 4 and put the answer in the tens column

 12

+34

 46

Educational software Instruction :

1.  Add the two numbers together then type your answer into the ‘Answer Box’ provided.

2.  Press ‘Enter’ when you have finished.

Click on the ‘Wording’ check box if you want the sum written in a sentence.

It might be easier to have backwards entry enabled for this exercise.

Module 23. These Instructions from 'Young Einstein Mathematics educational software by Maths Practice are Copyright. Copyright Maths Practice P/L 2003 ©