Question

Notează cu a adevărat sau f fals
A) 6+25:5-1+2x5=4x6-28:7+3x3x3-9x1
B) 100-90:9+80:8-10x1=4x10+2x3x5+2x2x5

Answer 1

a) 6+25:5-1+2×5=4×6-28:7+3×3×3-9×1
6+5-1+10=24-4+9×3-9
11-1+10=20+27-9
10+10=47-9
20=38 (F)

b)100-90:9+80:8-10×1=4×10+2×3×5+2×2×5
100-10+10-10=40+6×5+4×5
90+10-10=40+30+20
100-10=70+20
90=90 (A)