Math

12345678
Across
  1. 2. Number of ones in the number 578
  2. 4. Twenty one numbers after ten
  3. 6. When numbers are arranged from smallest to largest, it is called _____
  4. 8. Take away is also called as
Down
  1. 1. Five tens and six ones
  2. 3. If a number is subtracted from itself, the difference is _______
  3. 5. A number before any number
  4. 7. The result of addition is called ______