Question

Copiatipe caiete si completați casetele cu numere potrivite. a)Daca a=6,atunci 58+a=..........,b)Daca 3×27=81,atunci 5×27=81+..........×27............,c)Daca 10×127=1270,atunci 9×127=1270-...........,d)Daca 151+312=463,atunci 151+(312-69)=463-...........,e)Daca 36+42=78,atunci 2×36+2×42=...........×78.

Answer 1

58+6=64
5x27=81+2x27=135
9x127=1270-127=1143
151+(312-69)=463-69=394
2x36+2x42=2x78=156