如题所述
第1个回答 2014-03-23
0.25×8.6×4 89+456-78 5%+. 3/7 × 49/9 - 4/3 9 × 15/36 + 1/27 2× 5/6 – 2/9 ×3 3× 5/4 + 1/4 94÷ 3/8 – 3/8 ÷6 95/7 × 5/9 + 3/7 × 5/9 6/2 -( 3/2 + 4/5 ) 8 + ( 1/8 + 1/9 ) 8 × 5/6 + 5/6 1/4 × 8/9 - 1/3 10 × 5/49 + 3/14 1.5 ×( 1/2 + 2/3 ) 2/9 × 4/5 + 8 × 11/5 3.1 × 5/6 – 5/6 4/7 - ( 2/7 – 10/21 ) 19 × 18 – 14 × 2/7 5 × 25/16 + 2/3 × 3/4 4 × 8/7 – 5/6 × 12/15 简算题1.45+15×6= 135 2.250÷5×8=400 3.6×5÷2×4=60 4.30×3+8=98 5.400÷4+20×5= 200 6.10+12÷3+20=34 7.(80÷20+80)÷4=21 8.70+(100-10×5)=120 9.360÷40+10= 19 10.40×20-200= 600 11.(80-25)*2= 110 12.70+45=115 13.90×2÷3= 60 14.16×6÷3= 32 15.300×6÷9= 200 16.540÷9×7=420 17.30×20÷15= 20 18.400÷4×7= 700 19.(350-80)÷9= 30 20.160+70+50=280