Videos
Changing the order does not change the sum
306
Balance the equation
315
Mental strategies for addition
182
Big or small
278
Add three numbers within 10 in any order
297
Add 3 numbers upto 20 in any order
268
Divide the shapes into equal parts
154
Subtract within 10
345
Addition and Subtraction Equations
415
Bar graphs
387
Addition and Subtraction
306
Divide a shape into different parts
154
Addition using arrays
368
Addition of 1 digit numbers
186
Add and Subtract within 10
179
Addition and Subtraction using decomposition
342
Subtraction of 3 digit numbers
240
Add 1 digit numbers
405
Add and subtract
596
Addition using doubles
471
Repeated addition
382
Add and subtract within 100
409
Subtract within 10
260