1. Escribe el sumando que falta en las adiciones. A. - 43 + = 53 b. 32 + = - 9 c. + 51 = 0 d. - 7 + + 7 = 9 e. + ( - 13) + 17 = 27 f. + ( - 14) = - 28 g. - 6 + 3 + = - 8 h. + ( - 8) = 5 i. 17 + = 19.
En resumen
- 43 + x = 53 x = 96 32 + x = - 9 x = - 41 51 + x = 0 x = - 51 - 7 + x + 7 = 9 x = 9 + ( - 13) + x + 17 = 27 x = 23 - 14 + x = - 28 x = - 14 - 6 + 3 + x = - 8 x = - 5 - 8 + x = 5 x = 13 17 + x = 19 x = 2.
Airampelayo867
- 43 + x = 53 x = 96
32 + x = - 9 x = - 41
51 + x = 0 x = - 51 - 7 + x + 7 = 9 x = 9 + ( - 13) + x + 17 = 27 x = 23 - 14 + x = - 28 x = - 14 - 6 + 3 + x = - 8 x = - 5 - 8 + x = 5 x = 13
17 + x = 19 x = 2.