Videos
Changing the order does not change the sum
306
Balance the equation
315
Mental strategies for addition
182
Size and numbers
278
Add numbers upto 20 changing the order
268
Divide the shapes into equal parts
154
Add and Subtract within 10
179
Addition and Subtraction using decomposition
342
Subtraction of 3 digit numbers
240
Addition of 1 digit numbers
415
Addition and Subtraction
597
Addition using doubles
617
Addition and Subtraction
326
Add numbers within 10 changing the order
297
Addition of 1 digit numbers
186
Repeated addition
382
Subtract within 10
301
Divide a shape into different parts
154
Addition using arrays
368
Subtract within 10
352
Add and Subtract
416
Add and subtract within 100
350
Bar graphs
512