Question

Verifică relațiile. Notează cu A (adevarat )sau F (fals) a)6+25:5-1+2×5=4×6-28:7+3×3×3-9×1. )b)100-90:9+80:8-10×1=4×10+2×3×5+2×2×5

Answer 1

a)6+25:5-1+2×5=4×6-28:7+3×3×3-9×1
6+5-1+10=24-4+27-9
20=38 (F)
b)100-90:9+80:8-10×1=4×10+2×3×5+2×2×5
100-10+10-10=40+30+20
90=90 (A)

Answer 2

a)6+25:5-1+2x5=6+5-1+10
=11-1+10
=12-10
=2
deci a)6+25:5-1+2x5=4x6-28:7+3x3x3-9x1=24-4+27-9=20+18=38. Deci e falsă.

b)100-90:9+80:8-10x1=100-10+10-10
=90+10-10
=100-10
=90
dar la tine este: 100-90:9+80:8-10x1=4x10+2x3x5+2x2x5
=40+6x5+4x5
=40+30+20
=70+20
=90
deci este Adevărata. Eu am facuto in alt mod !Dar e adevărata!
sper ca te-am ajutat !