Question

dau coroana care face corect!!!
!!! COROANA !!!​

Answer 1

Răspuns:

a)2•5=10

10+1=11

5•11=55

4•5=20

55-20=35

35+1=36

b)3•4=12

9+12=21

5•21=105

5+105=110

Answer 2

Răspuns:

a) 5• (2•5=10+1) - 4•5+1

5• 11 - 4•5+1

55 - 20+1

35+1

36

b)5+5 • (9+3•4)

5+5 • (9+12)

5+5 • 21

5+ 105

110

c) (7•2+4) • 15 - 11 • 14

(14+4) • 15-11 • 14

18•15-11•14

270-154

116

d) 7• [5•3-(4•3-5)}+3•4

7• (15-12-5)+3•4

7• 8 + 3• 4

56 + 12

68

Explicație pas cu pas:

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