Question

1. Resolva as seguintes operaçoes: (a) 324 + 47 = (b) 534 − 244 = (c) 514 + 266 = (d) 123 − 222 = (e) 3123 + 3987 = (f) 314 − 226 = (g) 888 + 2222 = (h) −64 − 46 = (i) 864 − 468 = (j) −23 + 72 =

Answer 1

Resposta:

(a) 324 + 47 = 371.

(b) 534 − 244 = 290.

(c) 514 + 266 = 780.

(d) 123 − 222 = -99.

(e) 3123 + 3987 = 7110.

(f) 314 − 226 = 88.

(g) 888 + 2222= 3110.

(h) −64 − 46 = +18.

(i) 864 − 468 =396.

(j) −23 + 72 = -95.

acho que está certo.