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1、口算练习-加法结合律、交换律 总题数：100题19+8=8+()52+48=48+()19+73=( )+1998+49=( )+989+(4+7)=9+( )+72+3+6=( )+(3+6)6+(9+5)=6+9+()4+(7+9)=4+7+()6+9+3=6+(+3)8+6+4=8+(6+)2+3+4=2+(3+) (4+8)+9=4+(+9) ()+45=45+19()+7+9=2+(7+9)()+4+9=7+(4+9)9+( )=26+990+( )=74+9086+( )=60+868+( )+6=8+(9+6)2+7+( )=2+(7+5)96+66=()+9682+32=()+
2、8215+14=( )+158+(9+7)=( )+9+78+(7+4)=( )+7+4 6+(2+7)=6+( )+75+8+9=()+(8+9) 9+(8+2)=9+8+()9+2+7=9+(+7) 2+6+3=2+(+3) (4+3)+5=()+(3+5) (5+9)+2=5+(+2) ()+63=63+38 ()+(7+3)=9+7+3 ()+(3+6)=9+3+673+( )=7+7333+( )=58+334+( )+8=4+(6+8)8+( )+9=8+(3+9)9+3+( )=9+(3+8)w：物：_53+52=52+()49+19=( )+4939+66=()+395+(2+
3、9)=5+( )+97+(5+3)=7+( )+32+(4+5)=()+4+53+(8+4)=3+8+()2+3+9=2+(3+)8+7+5=8+(7+) 3+7+6 = 3+(+6) (5+8)+6=5+(8+) ()+39=39+83()+(2+5)=9+2+5()+(8+2)=5+8+2(+4)+6=3+(4+6)93+( )=5+9367+( )=65+676+7+( )=6+(7+2)3+( )+2=3+(4+2)7+5+( )=7+(5+4)算练习-乘法分配律 总题数：100题2x74+8x74 0 10x7493x8+93x2 0 93x108x66+2x660 10x6611x
4、8+11x2 0 11x1099x3+99x7 0 99x1016x6+16x4 0 16x(6+4)35x3 + 35x7 0 35x(3+7)27x6+27x4 0 27x(6+4)47x7+47x3 0 47x(7 + 3)4x14+4x86 04x(14+86)嬲：等级:7x21+3x21 O 10x21Hx3 + llx7C 11x10 22x8+22x2 0 22x10 2x41+8x410 10x418x18+2x18 O 10x18 52x7+52x3 0 52x(7+3) 82x6+82x4 0 82x(6+4)84x6+84x4 O 84x(6+4) 38x7+38x3 0
5、 38x(7+3) 5x64+5x36 0 5x(64+36)算练习-乘法简便计算总题数：100题核：等级:94x5x2=5x83x2=25x3x4=4x2x25=14x5x2=92+9x92=77+9x77=36x9+36=125x6x8=5802+5=8x7x125=8x3x125=220+5+2=93x99+93二99x75+75=200254=3200+25+4=7800-4-25=80001258二3000-8-125=5x63x2=34x5x2=74x5x2=4x3x25=2x4x25=9x74+74=64x9+64二9x92+92二430-5-2=3x8x125=7x8x125=
6、8x2x125=8x9x125=99x83+83=76+99x76=9600254=5300+25+4=4300+254=2000-8-125=6000-8-125=2x24x5=11x5x2=32x5x2=4x8x25=8x25x4=42+9x42二21+21x9=450+2:5=4805+2=9x8x125=4x8x125=140-5-2=99x96+96=88+88x99二99x93+93二6200-25-4=3300-25-4=7000-8-125=7000-125-8=90001258=2x98x5=7x25x4=4x9x25=9x4x25=9x25x4=9x46+46=91x9+9
7、1=710-5-2=125x3x8=420+5+2二380-5-2=880-5-2=75+99x75=76+76x99=99x44+44二7600-25-4=2200-4-25=4000-8-125=6000-125-8=30001258二算练习-乘法简便计算总题数：100题班级:物:66x17-7x66=65x15-5x65=95x15-95x5=43x15-43x5=53x12-53x2=33x16-33x6=16x34-6x34=15x89-5x89=93x12-2x93=73x14-73x4=15x62-62x5=15x72-5x72=37x15-5x37=66x12-2x66=46x
8、16-46x6=16x69-6x69=99x12-99x2=26x16-6x26=18x97-97x8=19x59-9x59=峨：物：一69+24+6=17+9+33=8+34+56=5x63x2=5x37x2=4x8x25=37x2x5=2x11x5=59+59x9=9x45+45=19+67+13=26+19+51=460-52=660-2-5=9x8x125=62+62x99=99x89+89=144-80-20=119-32-68=132-50-50=38+47+2=19+57+3=35+8+12=15+48+5=2x86x5 =5x92x2 =25x3x4=5x64x2=47+47x
9、9=27+27x9=52+52x9=14+47+16=870-52=18052 二740-5-2=29x99+29=64x99+64=15+99x15=121-66-34=154-72-28=算练习-单元综合练习 总题数：100题峨：物：一120-33-67=156-84-16=135-67-33=20+33+80+7=5700-4-25=3100+425=20+37+13+80=20+37+80+23二16+74+30+70二50+41+50+49二69x17-69x7=77x14-77x4=14x16-4x16=13x84-3x84=12x83-2x83=103-20-30-50=104-
10、25-25-50=143-45-35-20=105-45-25-30=112-35-45-20=138-77-23=173-82-18=600-4-25=33+20+80+7=26004-25=2900-25-4=63+27+50+50=20+80+11+49二33+30+47+70=40+25+60+65二19x42-42x9=17x76-7x76=16x68-6x68=19x72-9x72=61x12-2x61=124-35-15-50=109-30-30-40=116-35-45-20=118-30-20-50=125-30-20-50=94+59=()+944+2+8=( )+(2+8
11、)(2+7)+5=( )+(7+5)(7+8)+9=7+(+9)(7+25)x4=7x4+( )x434x25=30x25+( )x2588x125=( )x125+8x1256+(+5)=6+4+549x65 0 65x49(16x125)x8 016x(125x8)w：物:5+3+2=()+(3+2)8+(5+7)=()+5+7(8+7)+5=( )+(7+5)(9+25)x4 = 9x4+( )x4(25+7)x4=( )x4+7x4104x16=100x()+4xl670+( )=19+7020+21 0 21+20(96x2)x5 096x(2x5)(50x125)x8 0 50x(
12、125x8)7.1 O 6.54.3 O 3.69.9 O 9.53.8 O 2.66.6 O 6.20.8 O 0.40.5 O 0.39.3 O 9.94.3 O 4.85.4 O 6.61.4 O 1.64.8 O 4.95.8 O 5.11.5 O 2.85.4 O 6.47.7 O 7.63.9 O 2.35.2 O 5.72.7 O 1.34.4 O 3.21.8 O 0.40.4 O 0.61.7 O 2.91.1 O 1.95.5 O 5.34.3 O 4.89.7 O 8.56.4 O 5.88.6 O 8.44.5 O 5.44.2 O 3.71.1 O 1.69.1 O
13、9.55.2 O 6.93.3 O 2.15.2 O 5.99.2 O 8.86.8 O 7.90.9 O 1.37.7 O 7.62.251 O 2.27.37 O 7.732.42 O 2.240.86 O 0.687.17 O 7.713.301 O 3.30.32 O 0.235.65 O 5.561.52 O 1.250.7 O 0.7615.56 O 5.651.5 O 1.5014.6 O 4.6038.73 O 8377.42 O 7.241.5 O 1.5083.5 O 3.5837.42 O 7.249.23 O 9.323.29 O 3.928.726 O 8.71.50
14、7 O 1.55.72 O 5.275.96 O 5.698.46 O 8.647.67 O 7.762.57 O 2.754.882 O 4.83.15 O 3.510.79 O 0.978.82 O 8.8965.433 O 5.349.98 O 9.8924.62 O 4.2641.667 O 1.650.353 O 0.353.235 O 3.321.838 O 1384.58 O 4.5752.744 O 2.759.13 O 9.1920.83 O 0.3814.23 O 4.2081.14 O 1.1358.205 O 8.214.238 O 4.329.29 O 9.2843.
15、061 O 3.030.859 O 0.860.35 O 0.3462.56 O 2.5393.824 O 3.284.83 O 4.8061.915 O 1.925.705 O 5.711.43 O 1.3458.39 O 8.9373.727 O 3.722.911 O 2.973.773 O 3.78口算练习-小数的比较大小 总题数：100题腋：粉：口算练习-小数点位置移动引起小数大小的变化 总题数：100题峨：物：一28810=227-10=76-100=336-10=4.89x10=6.24x10=78.9-10=13.9x10=983-100=310-100=298-100=824
16、-100=163-100=0.804x10=0.932x10=706-1000=638-1000=1971000=0.518x100=9.21x1000=2410二544-10=31510=92410=67510=48.3x10=64.5-10=9.53x10=6.95x10=731-100=753-100=983-100=656-100=692100二0.562x10=8.94x100=235-1000=135-1000=0.076x100=6.79x1000=9.3 + 10=367-10=74610=525-10=49510=4.76x10=87.5-10=53.3x10=0.02x10
17、=157-100=881-100=117-100=522-100=391000=0.778x10=5.16x100=613-1000=355-1000=0.364x100=0.832x100=80110=465-10=981+10=88710=4.02x10=2.58x10=42.9x10=57.9x10=9.73x10=231-100=612100二488100=920100二153-100=0.083x10=0.228x10=198-1000=233-1000=0.314x100=9.22x1000=口算练习-小数点位置移动引起小数大小的变化 总题数：100题0.513x100=0.557
18、x1000=0.127x1000=0.882x10000=0.577x10000=0.151x100=0.077x1000=0.72x10000=0.628x10000=0.742x10000=7.89x1000=0.832x100=0.037x1000=0.105x1000=0.837x10000=0.917x10000=0.951x1000=0.654x10000=0.888x10000=0397x10000=2.6t = ( )kg9.6t = ( )kg3.8t = ( )kg23kg = ( )g8.2kg = ( )g0.6kg = ( )g9.9kg = ( )g8.8kg =
19、( )g620kg = ( )t540g =()kg5.76t =()kg8.21t =()kg5.98t = ( )kg5.29kg = ( )g1.26kg = ( )g7.29kg = ( )g2.21kg = ( )g3.61kg = ( )g2.58kg = ( )g8.45kg =()g0.12kg = ( )g8.55kg =()g6870kg =()t7120kg =()t6380kg = ( )t2880kg = ( )t4.3m = ( )dm53m = ( )dm8030g = ( )kg6360g = ( )kg2290g =()kg6440g = ( )kg190cm
20、 = ( )m5t560kg = ( )t4t210kg = ( )t450cm = ( )m480cm =()m670cm =()m104dm =()m632dm = ( )m168dm = ( )m108dm = ( )m5.45m = ( )cm5.67m = ( )cm3.85m = ( )cm4.9dm =()cm3.3dm =()cm6.72m = ( )cm138km = ( )m4.88km =()m577cm =()dm766cm = ( )dm573cm = ( )dm244cm = ( )dm558cm = ( )dm204cm = ( )dm123cm = ( )dm4
21、860m = ( )km6830m = ( )km2250m = ( )km口算练习-小数的改写 总题数：100题腋:微:算练习-加法结合律、交换律 总题数：100题9+(7+)=9+7+5 2+(+8)=2+6+8 (5+9)+( )=5+(9+2) (8+)+7=8+(5+7) 59+74 O 74+59 17+86O 86+17 98+34 0 34+985+(9+7) O 5+9+7 9+8+2 0 9+(8+2) 4+6+3 04+(6+3) (4+7)4-804+(7+8)(9+5)+8 O 9+(5+8) (7+5)+90 7+(5+9)(3+6)+2O3+(6+2)4+(+5)
22、=4+9+53+(5+)=3+5+2(6+)+3=6+(4+3) 17+45 0 45+1732+15 O 15+3236+40 O 40+36 55+67 0 67+55 5+(3+9) 0 5+3+9 3+8+2 0 3+(8+2) 5+(6+2) 0 5+6+2 (2+9)+802+(9+8) (4+9)+7。4+(9+7) (9+4)+7O9+(4+7)w：_4+(9+)=4+9+5(4+7)+( )=4+(7+2)(4+)+2=4+(5+2) 68+50 0 50+6847+65 O 65+4780+23 O 23+80 2+(8+9) 0 2+8+94+5+9 O 4+(5+9)
23、9+6+7 0 9+(6+7) 9+(5+6) 0 9+5+6 (2+4)+302+(4+3) (6+5)+7 0 6+(5+7) (9+3)+2 0 9+(3+2)姓名：分数：算练习-小数的改写 总题数:100题腋：物：9920m = ( )km3430m = ( )km8m92cm = ( )m8m25cm = ( )m3m99cm = ( )m3m55cm = ( )m3m51cm = ( )m362dm2 = ( )m21.67m2 = ( )dm28.27m2 = ( )dm28.67m2 = ( )dm29.77m2 = ( )dm27.03m2 = ( )dm2809cm2 =
24、( )dm2213cm2 = ( )dm2383cm2 =()dm25km60m = ( )km9km30m = ( )km7.79dm2 = ( )cm23km440m = ( )km231cm 0 2.3m615cm O 6.1m563cm O 5.6m5.9m O 595cm9.2m O 929cm479cm。4.7m8.7m O 872cm0.784kg 0 784g0.492kg 0 492g665g 0 0.665kg0.545kg 0 545g479g O 0.479kg944q 0 0.944kq769g 0 0.769kg2.46m O 245cm544cm O 5.43m4
25、.62m 0 463cm0.612km 0 612m0.856km O 856m123m O 0.123km算练习-单元综合练习 总题数：100题W： 物;3.910二4.2 10二2.3x10=27610二62510=88.9x10=2.55x10=59.8-10=24.310=9.91x10=55.4-10=82.2x10=53.5-10 二18.2x10=897-100=79-1000=750-100=0.511x10=5.42x100=6.68x100=756-1000=524-1000=2.25x1000=0.919x100=3.16x1000=0.188x1000=0.686x10
26、00=0.071x1000=0.156x10000=0.775x10000=7.6kg =()g1.2kg = ( )g8.8kg = ( )g5t80kg = ( )t98dm = ( )m7.15kg = ( )g5.26kg =()g3.4m =()dm6570g =()kg8110g =()kg4820g =( )kg7150g = ( )kg3840g = ( )kg4t530kg = ( )t894dm = ( )m424dm = ( )m9.7dm = ( )cm1.76m = ( )cm4.73km = ( )m7.75km = ( )m537cm = ( )dm143cm =
27、 ( )dm2m54cm = ( )m4m38cm =()m9m68cm = ( )m357dm2 = ( )m2998dm2 = ( )m2393dm2 = ( )m2637cm2 = ( )dm2814cm2 = ( )dm2202cm2 =()dm25.18dm2= ( )cm2 3km220m = ( )km 5kml70m = ( )km 6.9 O 6.50.2 O 1.38.5 O 8.34.5 O 4.5897.533 O 7.356.427 O 6.246.2m O 629cm 0.128kg 0 128g 6520m 0 6.4km372m O 0.372km嬲：等级：_9
28、63cm2 =()dm29.55dm2 = ( )cm2 5km570m = ( )km 7.4 0 7.30.8 O 0.58.5 O 8.38.4 O 8.76.272 O 6.20.937 O 0.990.299 O 0.92472g O 0.472kg0.128kg 0 128g0.765km 0 765m6km60m = ( )km6.06dm2 = ( )cm2 3km550m = ( )km 6.1 0 6.82.2 O 2.36.5 O 6.2931 O 9.130.3 O 0.3763.487 O 3.432.178 O 2.71944g 0 0.944kg 8750m 0
29、8.8km 0.377km O 377m5.76-3=94.2-2=16.9-3=3+34.5=4+0.26 二0.4+22=3.7+45 二43+0.8=53+2.6=83.7-0.6=79.9-7.4=79.8-5.5=89.5-1.5=32.6-1.4=38.7-3.7=4.52-4.4=94.1-3.1=68.8-6.7=69.8-6.7=76.2-0.2=43.8-3.8=65.7-4.7=6.77-4.4=72.9-1.4=65.9-2.4=69.6-8.1=90.9-0.3=934-2.2=27.6-1.5=86.8-1.1=2.6+10.3=20.4+5.2=5.1+53.7=
30、4.1+0.72=3.13+6.6=13.2+3.4=6.55+1.1=23.8+5.1=0.5+9.11=60.3+2.5=2.2+2.78=55.5+0.3=3.24+4.6=55.2+0.8=60.1+3.7=3.3+92.5=85.5+1.2=96.1+2.8 =1.4+37.2=54.3+1.4=67.7+1.1=2.38-0.32=7.65-3.61=二9.59-7.03=6.87-0.25=5.75-3.52=8.91-6.91=5.39-2.14=4.26-1.21=9.65-6.35=5.53-3.32=7.66-4.45=7.68-2.64=5.69-5.23=8.89-3
31、.37=9.93-5.62=6.66-2.21=9.97-2.87=6.88-5.26=4.68-0.31=9.68-6.54=7.79-0.58=9.87-8.52=6.96-0.81=2.94-031=1.67-0.26=833+0.06=2.41+7.32=7.83+1.03=2.13+2.66=1.38+8.31=1.11+3.74=6.71+1.13=2.71+1.18=4.14+4.04=5.31+1.56=1.62+135=4.23+3.02二0.11+9.38=0.02+0.31=6.06+2.42=9.04+0.64=1.11+1.83=2.03+6.86=2.15+1.43
32、=0.15+7.53=2.03+132=0.15+5.01=0.12+5.07=8.4-33-2=5.9-07-4=57-1.5-3=8.9-23-6=1.1+35-3=57-4.5+8=2.4+34-3 二6.5-63+7=3.8-02+2=4.4-11+3=7.4-71+5=7.8+11-2=11+8.8-9=9.9-41+4=63+0.5-1=22+5.4-7=93+0.4-1=6.6-12+2=95-8.2+2=76-5.5+5 二7.6-25+3=9.5-62+2=8.6-4.6+2=11+3.4-4=11+3.8+4=4+4.5+14=6.1+03+3=2+6.1+0.6=0.5+
33、3.2+4二21+5+0.4=9.8-(8.8-5)=5-(6.9-5.9)=7-(6.1-2.1)=6.4-(4.4-3)=6.5-(5.5-3)=8.7-(7.7-7)=4-(27-17)=9-(8.6-3.6)=6-(6.6 - 5.6)二7.9-3.4-22=6.5-11-2.4=7.9-03-1.4=8.7-7.2-03=93-2.1-5.1=7.5-1.2-03=7.6-0.2-12=8.8-1.7-3.1 二9.9-57-1.2=97-1.4-1.2=9.6-4.2-41=9.6-0.4-11=9.8-(1.1+8)=8.4-(1.2+7)=8.9-0.2-03=8.8-(4.6
34、+4)=8.9-02-7.6=7.5-1.2-03=97-6.1-1.4=8.5-(5.2+3)=2.2+2.1+13=3.3+1.3+43=13+3.5+5.1=23+0.3+4.2=2.2+52+0.5=3.2+43+1.2 二33+1.2+3.2=03+0.2+9.4=0.2+0.4+53=21+1.1+1.1=2.1+4.4+13=1.5+43+4.1=74+2.2+0.2=4.2+21+2.1=6.4-(5.9-5.5)=6.2-(6.4-3.2)=33-(4.6-33)=4.5-(8.8-7.3)=4.2-(4.9-1.7)=2.1-(5.7-4.6)=8.2-(7.5-0.3)=
35、修:W：口算练习-小数加减混合运算总题数：100题班级:物:7.7-(3.9-1.2)=7.9-(2.2+5.1)=8.9-(6.1+2.4)=97-(53+4.2)=7.9-(6.2+1.5)=8.4-(5.5-1.1)=7.9-(6.3+1.4)=5.8-(3.2+2.3)=8.9-(5.2+3.3)=2.8-(2.1+0.4)=6.2-(7.3-3.1)=9.9-(9.4+0.3)=8.9-(6.3+2.5)=9.9-(4.1+5.5)=87-(4.4+41)=3.5-(6.9-5.4)=7.7-(1.2+6.2)=9.9-(9.3+0.5)=1.5-(1.2+0.2)=8.9-(03+
36、81)=口算练习-整数加法运算定律推广到小数 总题数：100题8.9-62-1.8=6.2-11-4.9=9.6-15-2.1=二4.5+13-0.3=1.4+6.3-23=0.4+78-2.8二78+5.1+2.2 二6.9+62+3.1=73+2.2+7.8=25+5.4+4.6=79+8.2+2.1=5.9+63+4.1=18+1.4+8.6=03+2.7+1.9+1.1=0.4+9.9+0.6+11=0.9+1.7+03+5.1=0.6+42+0.8+2.4=1.7+33+0.5+5.5=1.7+03+3.6+6.4=9.9-3.6-43=7.9-1.2-37=8.5-2.3-57=3
37、1+6.4-0.4=13+8.6-2.6=5.4+42-1.2=0.6+52-2.2=83+8.5+1.7=5.7+42+5.8 二9.4+18+0.6=6.6+9.5+34 二0.8+9.6+04=0.5+9.2+0.8 二51+1.4+4.6+0.9=11+1.8+5.9+1.2=4.2+0.8+11+1.9=1.5+6.4+0.6+1.5=0.7+4.6+4.4+13=0.5+1.9+11+3.5=13+4.8+0.2+0.7=w：物;5.9-44-0.6 二8.9-3.6-43=4.9-11-0.8=11+3.2-1.2=17+4.4-1.4=82+9.5-7.5=2.2+7.3+78
38、 二41+6.8+3.2=8.8+8.3+1.7=1.2+6.9+31=7.5+19+2.5=33+5.4+4.6=81+1.6+1.9=1.7+3,8+13+0.2=1.7+33+0.5+5.5=1.5+11+6.9+2.5=13+8.7+0.6+1.4=0.4+4.6+0.3+47=1.2+4.1+19+4.8=0.8+15+3.2+1.5=口算练习-整数加法运算定律推广到小数 总题数：100题33+2.1+2.7+0.9=1.8+63+3.7+0.2=1.5+33+0.7+3.5=07+1.8+7.3+1.2=1.9+61+0.8+0.2=2.2+41+3.9+1.8=7.4+03+2.
39、7+0.6=2.1+6.6=( )+2.12.2+3.7=( )+2.23.1+( )=3.4+3.14.9+5.8 O 5.8+498.2+3.8 O 3.8+8.23.5+48 O 4.8+351.2+2.2 O 2.2+1.20.5+15+3.8+0.2=13+5.1+2.7+1.9=1.9+61+0.8+0.2=4.4+1.9+11+3.6=4.8+03+67+0.2=0.5+0.4+2.6+0.5=3.7+2.9+2.1+23=3.1+3.5=3.5+()9.7+5.1=5.1+()7.5+()=7.7+7.56.4+1.6 O 1.6+6.44.4+5.1 O 51+4.47.2+
40、5.4 O 54+7.2w：物:1.9+0.8+0.2+81=2.6+81+0.4+0.9=1.7+4.1+1.9+23=4.4+1.9+11+3.6=2.7+0.5+13+2.5=2.9+5.5+31+0.5=5.1+8.7=( )+5.16.9+8.4=()+69()+9.1=9.1+8.62.4+()=3.9+2.403+5.6 O 5.6+0337+5.5 O 5.5+377.2+9.4 O 9.4+7.2算练习-单元综合练习 总题数：100题嬲： 等级:46.7-5=9+55+5=67610=27.8-3.1=62.7-0.5=12.9-0.2=35.9-0.5=68.8-6.5=2
41、.7x100=3.62x10=47.2-10=71x2x5=2x91x5 =25x7x4二7x25x4=26x2x5=45+45x9二9x64+64=75+75x9=72x9+72=41x9+41=8.29-4.22=0.44+2.01=2.11+2.32=3.71+4.06=8x8x125=230-5-2=138-1000=5621000二2231000=41+41x99二99x87+87=135-54-46=104-57-43=0.853x100=7.64x1000=7+50+50+3=7.8-22-2.6=4.5-1.4-21=31-1.5-1.5=5.8-13-3.5=8.9-51-0
42、.8=0.9+9.8-3.8=7.4+91-6.4=600-4-25=1.2+57+8.8=11+6.6+3.4=8.8+4.7+53 二(8-3)义6 2 =(9-4)x4-2 =(9-3)x2-3 =0.519x1000=90+87+10+3=2100-25-4=8700+25:4=70(9-2)x4 =20-(8-6)x2 =60-(4+6)x3 =80-(6+4)x3 =80-(7+3)x9 =算练习-单元综合练习 总题数：100题20-(3+7)x9 =20-(6+4)x8 =70+27-(5-2)=50+22+48+50二40+12-(9-7) =62x13-62x3=70(95-85)-3=5.7kg =()g4340kg = ( )t7.1dm = ( )cm0.2 O 0.84.6 O 5.72.43 O 2.3480.139 O 03160-(7 + 3)x7 =5