Changes

The Addition and Subtraction 2 module extends the fundamentals of these two skills to include numbers up to 18. The activities have been designed not only to challenge your child, but also to present the concepts in a dynamic, exciting way. With Addition and Subtraction 2, Texas Instruments is continuing its tradition of applying innovative Solid State Speech^TM technology to educational activities. The optional [[Solid State Speech Synthesizer|Solid State Speech^TM Synthesizer]] (sold separately) adds the feature of computer speech to the color graphics and musical sounds of your computer. Your child can now hear, as well as see, the instructions and problems in the module.

===Introduction===

This [[:Category:Solid State Software Command Module|Solid State Software^TM Command Module]] is designed to be used with the Texas Instruments Home Computer. Its preprogrammed solid-state memory

expands the power, versatility, and capability of your Home Computer.

Copyright © 1981 Texas Instruments Incorporated<br>

====Activity 9: Review the Facts====

The review presents a variety of 24 problems, utilizing the skills represented in the module. Only one try is allowed, with an incorrect response resulting in a computer-supplied answer. For the child who answers 20 or more of the problems correctly, the module automatically provides an EXTRA FOR EXPERTS. This ten-problem activity displays one of the addends and the sum of the addition problem. Your child is asked to fill in the missing addend.

==Downloads==