I Can Add and Subtract Author:Vincent Douglas Children will enjoy developing their addition and subtraction skills with these fun and colorful tablets. Young learners will move progressively through arithmetic instruction, beginning with adding and subtracting single digits and moving on to adding and subtracting using double digits. Word problems are also included so that children will h... more »ave the opportunity to use their skills in real-life situations. Essential practice for standardized tests and for school achievement, this workbook/tablet combination provides the perfect bridge between home and school!« less