adiition Quiz

Question Number 1 15+7 A. 90 B. 40 C. 3 D. 22 Question Number 2 20+30 A. 50 B. 112 C. 78 Question Number 3 3000+1000 A. 100 B. 879 C. 3214 D. 5011 E. 7000 F. none of the above Question Number 4 79+10 A. 400 B. 62 C. 79 D. 89 Question Number 5 90+100 A. 190 B. 203 C. 305 Question Number 6 6-5+4-3 A. 78 B. 100 C. n D. b E. c F. none of the above Question Number 7 what is n=7+3 A. 12 B. 8 C. 4 D. noneofthe above