crossword puzzle

12345678910
Across
  1. 4. The sum of 4 hundreds 10 tens and 1 one
  2. 5. 5,000+0+60+7
  3. 7. (8x100)+(9x10)+(9x1)
  4. 8. The sum of ten plus ten
  5. 10. Two hundred ninety nine
Down
  1. 1. (7x1,000)+(8x100)+(9x10)+(0x1)
  2. 2. The sum of 10 thousands 8 hundreds 190 tens and 2 ones
  3. 3. 30+15
  4. 6. 700+80+0
  5. 9. The sum of 60 plus 9