Question

ma puteti ajuta rapid va rog!​

Answer 1

Răspuns:

3. 1815

89

2687

1880

4. × +

× -

× -

× ×

Answer 2

Răspuns:

3.a) ( 4 + 9 • 7 ) + 3.298 - 1.550 =

= ( 4 + 63 ) + 3.298 - 1.550 =

= 67 + 3.298 - 1.550 =

= 3.365 - 1.550 =

= 1.815

b) ( 6 • 7 - 5 - 19 ) + ( 8 • 6 + 23 ) =

= ( 42 - 5 - 19 ) + ( 8 • 6 + 23 ) =

= ( 37 - 19 ) + ( 8 • 6 + 23 ) =

= 18 + ( 8 • 6 + 23 ) =

= 18 + ( 48 + 23 ) =

= 18 + 71 =

= 89

c) 2.642 + 5 • 9 =

= 2.642 + 45 =

= 2.687

d) 8 • 9 + 1.808 =

= 72 + 1.808 =

=1.880

4. a) 9 + 8 • 9 = 71

b) 6 + 5 • 4 = 26

c) 9 • 9 - 5 = 76

d) 7 • 1 • 7 = 49