Electric Sums - Lumio Addition & Subtraction
© 2014 Lighthouse Learning
Complete the electric circuit puzzles using base ten sliders of the variety used in the "full partitioning strategy" used in some schools. Large numbers are broken into place values (469 = 400 + 60 + 9) and then added together. Content includes three animated tutorials that walk you through two methods of adding and subtracting.
$2.99, iPad, iPhone, iPod Touch (iOS 6.0 or later)
Teaches: math, based 10, adding, subtracting, math facts