Year 2 / Grade 2 • Daily Maths Drill
Addition and Subtraction Strategies
Build efficient one- and two-digit addition and subtraction strategies.
8 questions • 240-question rotating bank • 30 different sets before a full cycle repeats
8Questions
240Question bank
0Best score
💡 Quick Review
Addition and Subtraction Strategies
Partition numbers, make a nearby ten, compensate and use inverse relationships to calculate and check answers.
Key ideas
- two-digit addition
- two-digit subtraction
- partitioning
- compensation
- related facts and checking
Worked example: 49 + 26 = 50 + 25 = 75.
Common trap: When compensating an addition, adjust the addends in opposite directions.
Key words
compensation — adjust numbers while preserving a total or difference
inverse — operation that undoes another
partition — split by place value
sum — result of addition
difference — result of subtraction
How to use this drill: review the short notes when learning, then close them on later attempts and practise from memory. The rotating bank delays a full set repeat for 30 attempts on the same browser.