Question

Oblicz pamiętając o kolejności wykonywania działań.

a) 725 - 25 x 3 =

b) 222 - 128 : 32 =

c) 225 : 25 + 20 =

d) (78 + 69) x 2 - 2 =

e) 8 + 24 : (12 - 4) =

Oblicz

(27 + 2 x 51) : 3 =

25 + (63 - 27) x 2 =

Answer 1

a)725-25 x 3=725-75=650

b)222-128:32=222-4=218

c)225:25+20=9+20=29

d)(78+69)x2-2=147x2-2=294-2=292

e)8+24:(12-4)=8+24:8=32:8=4

 

 

(27+2x51):3=2727:3=707

25+(63-27)x2=25+36x2=25+72=97

Answer 2

a) 725 - 25 x 3 =725-75=650

b) 222 - 128 : 32 =222-4=218

c) 225 : 25 + 20 =225:45=5

d) (78 + 69) x 2 - 2 =147x0=0

e) 8 + 24 : (12 - 4) =32:8=4

 

(27 + 2 x 51) : 3 =(27+102):3=129:3=43

25 + (63 - 27) x 2 =25+36x2=25+72=97

Answer 3

a) 725 - 75 = 650

b) 222 - 4 = 218

c) 9 + 20 = 29

d) 147 x  2 - 2 = 294 - 2 = 292

e) 32 : 8 = 4

 

(27+ 2 x 51) :3 = (29 x 51) :3 = 1479:3 = 493
25 + (63 - 27 ) x 2 = 25+36 x 2= 25 + 72 = 97