Cum pot afla daca urmatoarele numere sunt naturale sau nu . a) [( 36 -12)-4]÷5-4 b) 2×[3+4×(2+1)]-5×[3×(4-2)] c) [5×13+8 (7×4+2-4×5)]÷8
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(24-4):5-4=20:5-4=4-4=0
2x(3+4x3)-5x(3x2)=2x(3+12)-5x6=2x15+30=30+30=60
[65+8x(28+2-20)]:8=(65+8x10):8=145:8=72.9
2x(3+4x3)-5x(3x2)=2x(3+12)-5x6=2x15+30=30+30=60
[65+8x(28+2-20)]:8=(65+8x10):8=145:8=72.9
iiiiiiii:
Multumes
CP
la b era 30-30=0 ;)
aa da
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a) [( 36 -12)- 4]÷5-4
(24- 4):5- 4=
20:5- 4=
4- 4=0
b) 2×[3+4×(2+1)]-5×[3×(4-2)]
2x(3+4x3)- 5x(3x2)=
2x(3+12)- 5x6=
2x15+30=
30+30=60
c)[5×13+8x(7×4+2- 4×5)]:8=
[65+8x(28+2-20)]:8=
(65+8x10):8=
145:8=18 rest 1
(24- 4):5- 4=
20:5- 4=
4- 4=0
b) 2×[3+4×(2+1)]-5×[3×(4-2)]
2x(3+4x3)- 5x(3x2)=
2x(3+12)- 5x6=
2x15+30=
30+30=60
c)[5×13+8x(7×4+2- 4×5)]:8=
[65+8x(28+2-20)]:8=
(65+8x10):8=
145:8=18 rest 1
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