Question

calculeaza respectand ordinea efectuari operatilor: a)2:2+2x2-2,3+3x3+3:3-3,4x4-4:4+4b)5-5:5+5x5,6:6+6x6-6,7-7:7+7x7c)8-8:8+8x8,9:9+9x9-9,10-10:10+10x10.

Answer 1

a)2:2+2×2-2=1+4-2=5-2=4
3+3×3+3:3-3=3+6+1-3=9+1-3=10-3=7
4×4-4:4+4=16-1+4=15+4=19
b)5-5+5×5=5-5+25=0+25=25
6:6+6×6-6=1+36-6=37-6=31
7-7:7+7×7=7-1+49=6+49=55
c)8-8:8+8×8=8-1+64=7+64=71
9:9+9×9-9=1+81-9=82-9=73
10-10:10+10×10=10-1+100=9+100=109