Question

Află numerele necunoscute: m x 35= 1470 m x 28 = 1 540 mx 45= 1 755 72 x m = 2 376 84 x m = 2 436 37 x m = 1813 832 - 23 x m = 510 701 - 15 x m = 431 185 +21 × m = 437​

Answer 1

m * 35 = 1470

m = 1470 / 35

m = 42

m * 28 = 1540

m = 1540 / 28

m = 55

m * 45 = 1755

m = 1755 / 45

m = 39

72 * m = 2376

m = 2376 / 72

m = 33

84 * m = 2436

m = 2436 / 84

m = 29

37 * m = 1813

m = 1813 / 37

m = 49

832 - 23 * m = 510

832 = 23 * m + 510

832 = 23 * m + 510

322 = 23 * m

m = 322 / 23

m = 14

701 - 15 * m = 431

701 = 15 * m + 431

701 = 15 * m + 431

270 = 15 * m

m = 270 / 15

m = 18

185 + 21 * m = 437

185 = 437 - 21 * m

185 = 437 - 21 * m

252 = 21 * m

m = 252 / 21

m = 12