8+2-8+2 25*4/25*4 7.26-(5.26-1.5) 286+198 314-202 526+301 223-99 6.25+3.85-2.125+3.875 9-2456*21

0.5/11.5-4*2.75 1/2×3/5 3.375+5.75+2.25+6.625 1001－9036÷18 3.8×5.25+14.5 2.1*4.3+5.7*2.1 30×1/3 102*45-328 2/3×12 2.8*3.1+17.6/8 3/5×5/6 (50-12.5)/2.5 2/5×1/3 6110*47+639 1/2-1/6 3.5*2.7-52.2/18 1/7×1/5 3.375*0.97+0.97*6.625

25×4/5 6.54+2.4+3.46+0.6 5/6-1/2 95.6*1.8+95.6*8.2

1/2×1/5 600-420/12 344/3.6-5.4*0.25 16/2+30/2+90/6

3001-1998. 5000-105*34 0.15/0.25+0.75*1.2 (1/2+1/3+1/4)*0.24 (25+4)*4 300-4263/21 0.81/0.25+5.96 403÷13×27 1.5×4.2－0.75÷0.25