by Baby Professor (Author)
This time, we'll be taking things a little more serious by doing combined two-digit vertical addition and subtraction drills. The order of drills included here are random so your child will never know what level of difficulty will be present in the next pages. That will make the learning a lot more challenging. Grab a copy today!
Number of Pages: 66
Dimensions: 0.14 x 8.5 x 8.5 IN
Publication Date: February 15, 2017