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——仅供参考0.5 ×0.4= 9.5+1.5= 2.7 ÷0.9= 0.15 × 4= 0.54 ÷ 3= 0.15 ÷ 3= 7.5+3.5= 0.1 ×8.5= 7.6+2.1= 20-0.2= 5÷20= 1.7+2.8= 2.5 ×4= 0.36 ÷ 9= 4÷0.08= 485÷100= 3.2 ÷1.6= 2.5 ×0.4= 6.6 ÷6= 0.35 × 5= 3.2 ×0.2= 1.6 ×0.5= 20-0.2= 4.65-0.75= 2.25 × 2= 0.15 ÷ 3= 0.9 ÷3= 2.8 ÷0.1= 4.8 ÷6= 3.6 ÷1.2= 120÷20= 8.5 ÷5= 0.15 × 4= 8×12.5= 3.6+4= 6÷0.5= 0.4+0.6= 0.6 ×0.4= 2.8 ×2= 4.8 ÷4= 4÷0.25= 8×12.5= 4×7.32 ×0.25= 0.9 ÷3= 20-0.2= ——仅供参考2.73 × 10= 0.16 × 5= 0.65 × 2= 1.6 ×0.5= 0.25 ÷ 0.25= 8.4-2.4= 24÷30= 1.25 × 8= 8.1 ÷0.9= 1.4 ×6= 2.8 ×0.4 ＝1.12 14－7.4 ＝6.6, 1.92 ÷ 0.04 ＝48, 0.32 × 500＝160, 0.65 ＋ 4.35 ＝ 5 10－5.4 ＝4.6, 4÷20＝0.2, 3.5 ×200＝700, 1.5 －0.06 ＝1.44 0.75 ÷ 15＝0.05, 0.4 ×0.8 ＝0.32, 4×0.25 ＝1, 0.36 ＋ 1.54 ＝2 1.01 × 99＝99.99, 420÷35＝12, 25×12＝300, 135÷0.5 ＝270 3/4 + 1/4 =1, 2 + 4/9 =22/9, 3 - 2/3 =7/3, 3/4 - 1/2= 1/4 1/6 + 1/2 -1/6 =1/2, 7.5-(2.5+3.8)=1.2, 7/8 + 3/8 =5/4 3/10 +1/5 =1/2, 4/5 - 7/10 =1/10, 2 - 1/6 -1/3 =1.5 0.51 ÷ 17＝0.03, 32.8 ＋ 19＝51.8, 5.2 ÷1.3 ＝4, 1.6 ×0.4 ＝ 0.64 4.9 ×0.7 ＝3.43, 1÷5＝ 0.2, 6÷12＝0.5, 0.87 － 0.49 ＝0.38 1.(1+1/2)(1+1/3)(1+1/4).(1+1/100) ——仅供参考2.(1-1/2)(1-1/3)(1-1/4).(1-1/100) 3.8+2-8+2 4.25*4/25*4 6.286+198 7.314-202 8.526+301 9.223-99 11.9-2456*21 13.1/2 ×3/5 15.1001 －9036÷18 16.3.8 ×5.25+14.5 18.30 ×1/3 19.102*45-328 20.2/3 ×12 22.3/5 ×5/6 23.(50-12.5)/2.5 24.2/5 ×1/3 25.6110*47+639 26.1/2-1/6 28.1/7 ×1/5 30.25 ×4/5 32.5/6-1/2 34.1/2 ×1/5 35.600-420/12 36.344/3.6-5.4*0.25 37.16/2+30/2+90/6 38.3001-1998. 39.5000-105*34 41.(1/2+1/3+1/4)*0.24 42.(25+4)*4 43.300-4263/21 45.403 ÷13×27 46.1.5 ×4.2 － 0.75 ÷0.25 ×4 +3.27 ×5.7 48. （1.2+ 1.8）× 4.51025 －768÷32 ...