70 days of calculation addition and subtraction: Math and calculation book, holiday book, kindergarten K-2 - timed exercise gifts for your 4 year old

By calcul-math Publishing

We have proposed in this book for your children several pages, with progressive levels, more than 70 pages of exercises around additions and subtractions to improve and increase your children's ability to perform simple operations faster.

We also proposed the idea of score and time in order to time your children, this way will encourage them and make them want to continue.

measure:

73 pages.8.5 X 11 inches

• Format: Paperback
• Language: English
• ISBN: B088LB6L9L
• ISBN13: 9798645619657
• Release Date: May 2020
• Publisher: Independently Published
• Length: 74 Pages
• Weight: 0.43 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"