Across
- 2. Changing the grouping of numbers, like turning 10 ones into 1 ten
- 4. notation A way to show a number by writing the value of each digit
- 5. A line where points correspond to numbers in order
- 7. Taking away numbers to find what is left
- 9. A symbol (=) used to show two numbers have the same value
- 10. To see if numbers are the same, smaller, or bigger
Down
- 1. Two lines that meet to form a right angle (90 degrees)
- 3. value The value of a number depending on where it is in a number
- 6. An angle that is smaller than 90 degrees
- 8. A shape with three or more straight sides