Columns to 10 000
Adding and subtracting · Alberta Grade 4 · maddyhelps.com
- Name
- Date
The same method as Grade 3, one column wider. Line up ones under ones and carry or trade across. The second subtraction has zeros in the middle, which is the hard one.
2456
+ 3178
4709
+ 2695
3847
+ 4386
7342
− 2518
6005
− 2748
9120
− 4675