Here are some Addition questions
A1. 7894.63 + 842.74

A2. -836 + -739.6

A3. 953.734 + 72.93

A4. 96346 + 750.82

A5. 8523 + 952.83

A6. 952.636 + 95285

A7. 68537 + 17492.8

A8. 7857.863 + 2672

A9. 8535 + 76882

A10. 983.7 + 8621.963

A11. Bonus:
76269.84 + 4091.834
A12. 8536 + 852.7

A13. 953.8 + 752.73

A14. 2784.7 + 536.85

A15. 8526.94 + 85.64

A16. 4294.6 + 7537.4

A17. 7.853 + 100.752

A18. 496.75 + 86376.9

A19. 88.79 + 2746.6

A20. 677.752 + 637

A21. 9763 + 7539

A22. Bonus:
78527.8 + 1.7857