Fun / Mixed Level 19: 3d +/- (basic). addition chunks.
1. Large addition chunks
Add the large place-value chunks first.
2. Remaining addition chunks
Large addition chunks
Add the remaining place-value chunks.
3. Join addition chunks
Large addition chunks
Remaining addition chunks
Add the two chunk totals.
4. Read answer
Large addition chunks
Remaining addition chunks
Join addition chunks
Read the complete addition.