Across
- 2. To create something or to show that something is true.
- 5. Solving math problems by adding, subtracting, multiplying, or dividing numbers
- 8. Straight up and down.
- 9. Straight across from side to side.
- 11. A mental math strategy where you change one number to make the problem easier, then adjust the answer to keep it correct
Down
- 1. To find a solution using numbers and mathematical operations.
- 3. A symbol (usually a letter) that stands for a number we don’t know yet
- 4. A simple picture or drawing.
- 6. A set of steps you follow to solve a math problem
- 7. A close guess that is not exact, used to quickly understand about how much something is
- 10. Changing how numbers are grouped in place value to help with addition or subtraction