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60道 计算题

下载文件:七年级数学--实数-练习题及答案.doc

102×(-4.5)-(-3)×(-5) ÷2 7.8×6.9+2.2×6.9 (-2)+2-(-52)×(-1) ×5+87÷(-3)×(-1) 5.6×0.258×(20-1.25) (-7.1) ×〔(-3)×(-5)〕÷2 -2.5×(-4.8)×(0.09)÷(-0.27) 127+352+73+44×(-2) 89×276+(-135)-33 25×71+75÷29 -88÷(-2) 243+89+111+57 9405-29...

竖式计算题给你举几个例子: 110 − 59 = 51 123 − 45 = 78 111 − 35 = 76 100 − 89 = 11 45 − 29 = 16 竖式请见图: 1210 ÷ 11 = 110 625 ÷ 25 = 25 28.63 − 0.04 = 28.59 104.5 + 18.85 = 123.35 5.235 &#...

一、脱式计算(能简便的要简便)1) 12.53-1.35×2+7.32) 7.12×0.81+7.12×1.193) 0.15+(3.74-1.8)÷0.44) 18.6×[0.1÷(8.1-8.09)]5) 1/5+4/5×1/9÷4/96) 2/15÷(19/21+3/7)×207) (2/5-3/4×8/15)÷5/28) 9×[1-(2/5+9/20)]9) X/3.5=...

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...

1.(-2a??)(3ab??-5ab??) =-6a??b??+10a??b?? 2.(3y+2)(y-4)-3(y-2)(y-3) =3y??-10y-8-3(y??-5y+6) =3y??-10y-8-3y??+15y-18 =5y-26 3.(2x+y)??-(2x+3y)(2x-3y) =4x??+4xy+y??-(4x??-9y??) =4x??+4xy+y??-4x??+9y?? =4xy+10y?? 4.(x+2y-3)(x-2y+...

1.[(7.1-5.6)×0.9-1.15] ÷2.5 2.5.4÷[2.6×(3.7-2.9)+0.62] 3.(23/4-3/4)*(3*6+2) 4. 3/7 × 49/9 - 4/3 5. 8/9 × 15/36 + 1/27 6. 12× 5/6 – 2/9 ×3 7. 8× 5/4 + 1/4 8. 6÷ 3/8 – 3/8 ÷6 9. 4/7 × 5/9 + 3/7 × 5/9 10. 5/2 -( 3/2 + 4/5 ) ...

(1) 103÷73-159-57= (2) 83×91÷131+38= (3) 197-46+67-13= (4) 38÷54×126-52= (5) 192+52×136÷66= (6) 123-47+159-16= (7) 164×23-126+74= (8) 117+21+17-19= (9) 7÷9×161+93= (10) 93×35-128+36= (11) 86×9×187×99= (12) 68÷83-14÷54= (13) 80÷...

1. 一个果园里栽了125棵苹果树,梨树的棵数比苹果树的4倍少20棵。这个果园一共栽了多少棵树? 2. 一段路长324米,已经修了240米,剩下的计划4小时修完。平均每小时修多少米? 3. 红光印刷厂装订一批日记本,前三天共装订了960本,后16天平均...

30.8÷[14-(9.85+1.07)] [60-(9.5+28.9)]÷0.18 2.881÷0.43-0.24×3.5 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 777×9+1111×3 0.8×[15.5-(3.21+5.79)] (31.8+3.2×4)÷5 31.5×4÷(6+3) 0.64×25×7.8+2.2 2÷2.5+2.5÷2 19...

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