 
<translate> E nwere ụmụ akwụkwọ iri na itoolu na klas nke atọ. Na klas nke anọ, e nwere ụmụ akwụkwọ 2 × 19 = 38. Ọ bụrụ na anyị agbakọọ ụmụ okoro na ụmụ agbọghọ nọ na klas nke abụọ, e nwere 10 + 19 = 29. E nwere ụmụ akwụkwọ 19 + 38 + 29 = 86 n'ozuzu. Azịza ikpeazụ: 86. <eng> In the third grade, there are 19 students. In the fourth grade, there are 2 × 19 = 38 students. Counting the boys and girls in the second grade, there are 10 + 19 = 29. There are 19 + 38 + 29 = 86 students in total. Final answer: 86. 