Răspuns :

Lucamogos08id

Răspuns:

a)x=17-8=9

b)X=20-7=13

c)X=13 X 11=143

d)x=90:6=15

e)x=108-18=90

f)x=43:13=3 rest 4

Lepurasulid

Răspuns:

1. X + 8 = 17

X = 17 - 8

X = 9

2. 20 - X = 7

X = 20 - 7

X = 13

3. X : 13 = 11

X = 11x13

X = 143

4. 90 : X = 6

X = 90 : 6

X = 15

5. 108 - X = 18

X = 108 - 18

X = 90

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