Question

vă rog ajutațimă la ex 1 ex 2 ex 3 vă inplor​

Answer 1

1. a)245:5=49

3648:4=912

b)23500:100=235

230000:1000=230

c)648:12=54

7452:23=324

2. a)648:8=81

Proba: 8*81=648

b) 3484:9=387,(1)

Proba=387,(1)*9=3484

c)321:15=21,4

Proba=21,4*15=321

3. a) 7*a=2268

a=2268:7

a=324

b) b:23=340

b=340*23

b=7820

Answer 2

Răspuns:

1.

a)245:5=49

3648:4=912

b)230000:100=2300

230000:1000=230

c)648:12=54

7452:23=324

2.

a)648:8=81

P:81×8=648

b)3484:9=387 rest 1

387×9+1=3484

c)321:15=21 rest 6

21×15+6=321

3.

a)7×a=2268

a=2268:7

a=324

7×324=2268

b)b:23=340

b=340×23

b=7820

7820:23=340

c)2304:c-25=71

2304:c=71+25

2304:c=96

c=2304:96

c=24

2304:24-25=71