Skip to content
Math Gym
Addition Guide

Addition Level 16: 3d + 3d (no carry). answer-window addition.

1. Fill hundreds

Step 1: Fill hundreds
raw windows
running strip
Hundreds window: 3 + 2 = 5. Release 5.

2. Fill tens

Step 2: Fill tens
raw windows
running strip
Tens window: 2 + 5 = 7. Release 7.

3. Fill ones

Step 3: Fill ones
raw windows
running strip
Ones window: 4 + 1 = 5. Release 5.

4. Read answer

Step 4: Read answersettled digits
Read 575; estimate before submit.