Grade 1 Mental Math: Mixed Mental Math Strategies
Practice choosing the best strategy
What You'll Learn
- Choose the best strategy for each problem
- Apply all mental math strategies
- Build speed and accuracy
📖Choosing a Strategy
Different problems work best with different strategies. Look at the numbers and decide which strategy fits!
✏️Which Strategy?
8 + 7? Use make 10! 5 + 5? It's a double! 6 + 7? Doubles plus one! 15 + 8? Break apart!
💡Tip
With practice, you'll automatically know which strategy to use!
Worked examples
Real problems from the practice worksheets, solved one step at a time.
Example 1
6 + 6 = ?
- 6 needs 4 more to make 10.
- Split 6 into 4 and 2.
- 6 + 4 = 10.
- 10 + 2 = 12.
Answer: 12
Example 2
9 + 10 = ?
- Start at 9 on the number line.
- Count forward 10 steps.
- You land on 19.
Answer: 19
Example 3
8 + 9 = ?
- 9 needs 1 more to make 10.
- Split 8 into 1 and 7.
- 9 + 1 = 10.
- 10 + 7 = 17.
Answer: 17
Practice Worksheets
Mixed Mental Math 1
Practice all mental math strategies
8 problemsStart
Mixed Mental Math 2
More mixed strategy practice
8 problemsStart
Mixed Mental Math 3
Additional mixed strategy practice
8 problemsStart
Mixed Mental Math 4
Keep practicing all strategies
8 problemsStart
Mixed Mental Math 5
Master all mental math strategies
8 problemsStart