Sagot :
325 * 10% = 325 * 0.1 = 32.5
640 * 100% = 640 * 1 = 640
840 * 25% = 840 * 0.25 = 210
640 *50% = 640 * 0.5 = 320
600 * 75% = 600 * 0.75 = 450
440 * 5% = 440 * 0.05 = 22
Explications étape par étape:
a. 325 x 10/100 = 32,5
b. 640 x 100/100= 640
c. 840 x 25/100= 210
d. 640 x 50/100= 320
e. 600x 75/100= 450
f. 440 x 5/100 = 22