四年级下册口算题大全（全册各类完整15份）.docx

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1、22+4=4+()72+93=93+()12+64=64+()26+99=99+()5+4+9=( )+(4+9)2+(5+6)=( )+5+65+(6+2)=5+( )+26+9+7=()+(9+7)8+(4+3)= 8+4+()5+3+7=5+(3+)3+6+4 = 3+(6+)(5+9)+2 = 5+(+2)(3+9)+4 = 3+(9+)()+(7+9)=6+7+9()+(6+3)= 2+6+3()+(2+9)=5+2+9(+5)+3=7+(5+3)88+( )=29+8886+( )=60+8641+( )=74+416+88=( )+619+34=34+()26+48=48+()6

2、+(3+2)=( +3+26+(5+3)=( +5+34+9+7=( )+(9+7)5+(2+4)=5+( )+47+(6+2)=( +6+28+7+4 = 8+(+4)8+9+7=8+(+7)9+8+3 = 9+(+3) (5+9)+8=5+(+8) ()+27=27+69()+(5+7)=8+5+7()+9+5=3+(9+5)()+8+3=6+(8+3)(+5)+2=4+(5+2)54+( )=92+5423+( )=36+2361+( )=15+615+65=65+()33+45=45+()87+43=( )+875+(2+6)=( +2+69+(8+2)=9+8+()2+4+9=( )

3、+(4+9)7+(5+8)=7+5+()6+(8+7)=( )+8+77+5+2 = 7+(+2)5+3+4=5+(+4) (5+6)+8=5+(+8)(2+9)+8=2+(+8)()+71=71+41()+(9+4)=8+9+4()+(2+4)=6+2+4(+8)+5=7+(8+5)(+5)+8=2+(5+8)52+( )=67+5226+( )=89+266+3+( )=6+(3+2)4x8x25 =3x4x25=11x2x5=4x3x25 =69x5x2二89x9+89=62+9x62二9x23+23=82035+2=125x2x8=125x4x8=550-2-5=760-2-5=25x

4、99+25=12+99x12=1300+425=4800-4-25=6700-25-4=8000125+8二60001258=87x5x2=76x5x2=4x2x25=5x25x4=25x9x4=21+21x9=77+77x9=87+9x87=990-2-5=125x3x8=410-2-5=430-2-5=290-5-2=65+99x65二91+91x99=9700+4+25=5200-25-4=4900-25-4=50008125=4000:8:125二13x5x2=3x25x4=2x63x5=11x2x5=6x4x25=9x75+75=17x9+17=8x6x125=4x8x125=125

5、x9x8=9x8x125=5x125x8=99x63+63二99x45+45二97x99+97=1500+4:25=2800-25-4=4000-125-8=70008125=20008125=19x2x5=94x2x5=5x63x2=4x4x25=2x4x25=9x92+92=81+81x9=3x125x8=8x3x125=870:532-510-5-2=740-5-2=99x95+95二99x68+68=64+64x99=83004-25二5200-4-25=6000-8-125=70001258=30001258=14x53-4x53=17x35-7x35=82x19-82x9=18x1

6、6-18x6=18x92-92x8=19x76-76x9=66x17-66x7=18x36-36x8=15x89-5x89=16x55-55x6=66x19-66x9=83x15-5x83=18x72-8x72=32x15-5x32=19x99-99x9=74x16-6x74=16x22-6x22=58x16-6x58=63x12-63x2=68x17-7x68=9+12+48=5+26+34二34+7+53=27+8+43=5x28x2=2x79x5=702 二4x4x25=91x2x5=9x91+91=91+9x91=83+83x9=135-98-2=13+19+61=55032+5=8x

7、3x125=62+62x99=99x81+81=127-73-27=132-73-27=9+7+13=45+38+2=28+36+2=4+57+16二5x56x2 =5x79x2 =34x5x2=2x28x5=5x24x2=41+9x41=9x43+43=99+99x9=197-98-2=194-95-5=17+19+41=310-2-5=9802+5=45+99x45=53+99x53=135-86-14=122-31-69=141-88-12=58+40+2+60=33+90+7+10=70+30+6+54=4900+25:4=1800:25:4二80+17+23+20=40+24+66+

8、60=40001258二32x17-7x32=19x69-69x9=19x89-89x9=17x24-24x7=99x17-7x99=112-30-40-30=106-20-20-60=119-25-35-40=105-35-35-30=138-40-20-40=137-71-29=123-48-52=900+4+25=6+90+44+10=30+70+36+4=40+60+3+77=6100:25:4二132-45-5-50=30+12+48+70=40+60+25+15=5000-125-8=18x84-8x84=19x64-9x64=16x44-6x44=46x15-5x46=85x13

9、-3x85=113-30-40-30=107-45-25-30=116-20-30-50=117-40-30-30=74+11=( )+743+9+7=()+(9+7)7+2+6 = 7+(+6) 41x25=( )x25+lx25(25 + 2)x4=( )x4 + 2x4 82x125=( )x125+2x12548x125=40x125+( )x125()+38=38+587+(+6)=7+5+6 (63x2)x5 063x(2x5)8+(5+4)=8+( )+42+9+5=2+(9+) 74x25=70x25+4x()45x25=40x( )+5x25 87x125=( )x125+7

10、x12568x125=60x125+( )x125 ()+49=49+42+( )+5 = 2+(8+5)9+(7+8)O9+7+8(62x8)x125 O 62x(8x125)5.3 O 5.96.3 O 6.24.7 O 5.30.7 O 1.63.8 O 4.49.3 O 8.35.1 O 5.52.5 O 3.62.7 O 2.7146.75 O 6.577.75 O 7.575.96 O 5.691.215 O 1.20.35 O 0.532.16 O 2.6147.53 O 7.5335.56 O 5.5314.61 O 4.1636.051 O 6.061.03 O 1.0711

11、.1 O 1.99.7 O 9.91.5 O 0.56.6 O 6.21.7 O 0.27.5 O 6.48.8 O 8.70.2 O 0.39.8 O 9.8262.57 O 2.757.18 O 7.817.69 O 7.965.58 O 5.856.686 O 6.68.44 O 8.4390.353 O 0.356.54 O 6.5332.36 O 2.3178.295 O 8.216.93 O 6.3913.9 O 4.30.9 O 0.79.2 O 9.55.8 O 5.54.4 O 4.15.4 O 4.33.9 O 2.35.8 O 6.49.41 O 9.146.716 O

12、6.70.49 O 0.942.69 O 2.961.58 O 1.859.5 O 9.5045.48 O 5.8443.952 O 3.954.473 O 4.487.573 O 7.530.984 O 0.890.128 O 0.138.3 O 8.62.7 O 2.69.7 O 8.17.9 O 6.60.4 O 1.38.1 O 7.97.5 O 6.96.5 O 6.45.914 O 5.99.174 O 9.19.53 O 9.358.58 O 8.857.81 O 7.182.69 O 2.961.14 O 1.1357.583 O 7.594.929 O 4.295.81 O

13、5.8033.345 O 3.437.32 O 7.2331.8 O 1.45.8 O 5.15.2 O 5.98.1 O 9.85.2 O 5.75.4 O 5.18.8 O 7.38.5 O 9.91.9 O 1.9482.54 O 2.458.923 O 8.96.59 O 6.957.96 O 7.698.29 O 8.920.756 O 0.573.956 O 3.963.299 O 3.923.773 O 3.782.57 O 2.5185.93 O 5.968649-10=357-10=322-10=49100=18.2-10=92.8x10=69.7:10 二85.2-10=9

14、.69x10=995100=983:100=811-100=912-100=131-100=748-100=0.471x10=0.402x10=856-1000=873:1000二0.07x1000=221-10=55110=217-10=6.86x10=44.4x10=58.2-10=63.7x10=75.3:10二4.8x100=270-100=417-100=13:1000=727-100=114-100=69-1000=0.228x10=7.79x100=562-1000=9.91x1000=0.502x100=262-10=49:100二55”10 二55.3:10 二28.2x10

15、=32.9+10=65.2:10 二15.910=3.96x10=36-1000=755:100二246-100=270-100=36-1000=0.671x10=0.953x10=0.739x10=630-1000=6.79x1000=0.767x100=787-10=262-10=293:10二4.76x10=2.94x10=78.2x10=0.29x10=6.46x10=174-100=665:100=994-100=72-1000=218-100=678-100=9.16x100=0.083x10=0.196x10=268-1000=0.144x100=0.663x100=4.27x1

16、000=0.136x100=0.44x10000=0.841x10000=0.077x10000=0.483x100=2.44x1000=0.598x1000=0.295x10000=0.339x10000=5.22x1000=5.38x1000=0.872x1000=0.811x10000=0.888x10000=0.076x100=0.237x1000=0.511x10000=0.626x10000=0.643x10000=6.4t = ( )kg5.9kg = ( )g1.8kg = ( )g 770g = ( )kg 9.64t = ( )kg 7t50kg = ( )t 4.47kg

17、 = ( )g 2.21kg = ( )g 5.22kg = ( )g 8890kg = ( )t 8910kg = ( )t 2980g = ( )kg 5t560kg = ( )t 9t960kg 二()t 397dm = ( )m 816dm = ( )m6.3dm =()cm 9.16m = ( )cm 4.64km =()m 725cm 二()dm7.7t = ( )kg6.4kg = ( )g6.4kg = ( )g9.64t = ( )kg 4t30kg = ( )t 85dm = ( )m 038kg = ( )g 7.86kg = ( )g 5.29kg = ( )g 761

18、0kg = ( )t 7.7 m = ( )dm 6540g = ( )kg 780cm = ( )m 4t640kg 二()t 376dm = ( )m 632dm = ( )m 3.64m = ( )cm 9.85km = ( )m 4.53km = ( )m 164cm = ( )dm8.8t 二()kg0.3kg 二()g 920kg = ( )t 8.58t = ( )kg 2t80kg = ( )t 77dm = ( )m 0.12kg = ( )g 8.45kg = ( )g 2.45kg = ( )g 9690kg = ( )t 9730g = ( )kg 5620g = (

19、)kg 4t680kg = ( )t 180cm = ( )m 168dm = ( )m 5.6dm = ( )cm 1.97m = ( )cm 9.42km = ( )m 857cm = ( )dm 527cm = ( )dm849cm = ( )dm1060m = ( )km4070m = ( )km792dm2 = ( )m2 583dm2 = ( )m2 4.61m2 = ( )dm2 3km40m = ( )km 7.7m O 774cm4.2m O 424cm 869cm。8.6m 0.785kg O 785g 7.57m O 756cm6.5km O 6410m0.318km O

20、 318m7430m = ( )km 6830m = ( )km 3m51cm = ( )m 204dm2 = ( )m2 362dm2 = ( )m2 4.87m2 = ( )dm2 3.06dm2 = ( )cm2 8.1m O 814cm 2.3m O 233cm 0.577kg O 577g 0.545kg。545g 484cm O 4.83m 0353km O 353m1520m = ( )km 1760m = ( )km 5m47cm = ( )m 895dm2 = ( )m26.72m2 = ( )dm2 315cm2 = ( )dm2 1.1kg O 1210g9.3m O 9

21、37cm1.3 m O 131cm 0.969kg O 969g 665g。0.665kg 3.67m 0 368cm 834m C 0.834km2+7+( )=2+(7+5)3+( )+4=3+(9+4)3+(2+)=3+2+4 (7+5)+()=7+(5+2)4+20 O 20+479+24 O 24+7921+57O 57+219+(7+6) O 9+7+67+8+30 7+(8+3)2+(7+4) 0 2+7+4 (8+3)+4。8+(3+4)(2+8)+3 O 2+(8+3) (5+8)+9O5+(8+9)(5+4)+9O5+(4+9)6+( )+5=6+(4+5)5+( )+3

22、= 5+(8+3)2+(4+)=2+4+57+76 O 76+76+32 O 32+629+40 O 40+2937+48 O 48+37 7+4+8 0 7+(4+8) 4+7+5 04+(7+5) 2+(3+9) 0 2+3+9 (8+4)+5 0 8+(4+5) (3+2)+7 0 3+(2+7) (7+5)+3。7+(5+3)8+3+()=8+(3+7)7+( )+5 = 7+(9+5)9+(+8)=9+2+86+66O 66+617+86O 86+1726+37 O 37+26 8+(3+5) 0 8+3+52+8+5 O 2+(8+5) 4+(7+9) 0 4+7+9 9+3+70

23、 9+(3+7) (3+5)+8 0 3+(5+8) (2+8)+4 0 2+(8+4) (2+7)+5 0 2+(7+5)9-10=68:100二3.54x10= 166-100= 318-100=4.99x100=0.884x10=832-1000=0.748x100= 0.569x10000=1.4 t = ( )kg8.57t = ( )kg2.55kg = ( )g 4820g =( )kg 9t230kg = ( )t 1.5dm = ( )cm 1.9dm = ( )cm 13dm2 = ( )m2 6m54cm = ( )m 158dm2 = ( )m281-10=498:10

24、二2.28x10=527-100=0.805x10=3.13x100=424-1000=971-1000=0.594x1000=0.178x10000=5.58t = ( )kg 5t50kg = ( )t 8.6m = ( )dm 6150g = ( )kg 6t610kg 二()t 4.95m =()cm 0.2dm = ( )cm 842cm = ( )dm 5m84cm = ( )m 685cm2 = ( )dm268-100=27.8+10=13.2-10二79:1000二0.729x10=0.718x10=356:1000二0.358x100=0.108x1000=0.468x10

25、000= 134t = ( )kg 1.66kg = ( )g 4190g =( )kg 6570g = ( )kg 176dm = ( )m 8.7dm = ( )cm 8.61km = ( )m 3860m = ( )km 270dm2 = ( )m2 396cm2 = ( )dm2191cm2 = ( )dm2242cm2 = ( )dm2 9.08dm2 = ( )cm2 6km460m = ( )km1.8 O 0.30.3 O 0.73.6 O 4.45.262 O 5.25.755 O 5.573.18 O 3.8138.9kg。8830g4.9m O 497cm325g 032

26、5kgce O922m 0.922kmO930cm2 = ( )dm23km80m = ( )km7km560m = ( )km8.7 O 7.80.5 O 1.10.2 O 1.37.7 O 7.84.1 O 4.1877.15 O 7.1277.127 O 7.17499cm。4.9m944g O 0.944kg418cm 4.19m617cm2 = ( )dm2 4km20m = ( )km 9km210m = ( )km 6.9 O 6.42.8 O 3.79.9 O 9.72.7 O 2.7689.797 O 9.764.122 O 4.137.332 O 7.34 312cm O

27、3.1m 399g O 0399kg 0.761km O 761m56.2-2=7.2+51=23.4-3.1=45.9-4.9=3.49-3.1=94.9-3.9=0.35+8.5=30.5+8.2=0.74+1.1=6.34+3.3=80.5+0.2=3.58-0.54=9.64-6.64=9.68-7.32=5.96-1.35=1.85-0.83=2.05+0.41=2.04+1.72=0.15+5.01=1.11+1.83=47.8-7=42.5+2=59.7-9.6=22.6-1.3=55.9-0.5=3.82-2.1=1.2+30.8=0.2+8.62=13.2+3.4=3.1+6

28、2.8=43.9+4.1=7.42-632=9.69-3.13=8.96-5.01=2.26-2.24=5.97-3.52=3.41+5.05=3.41+5.05=1.62+135=2.05+3.84=68.6-2=82+2.9=65.7-4.7=79.9-6.5=3.46-3.4=31.9-1.7=60.7+4.2=80.5+0.2=10.9+7.1=6.09+0.9=0.7+6.18=6.47-1.34=4.38-2.34=8.78-6.58=9.68-7.32=9.57-7.23=2.35+634=0.34+2.24二1.02+8.53=0.52+9.15=29.8-2=7.8-1.2=

29、64.9-4.6=5.87-1.6=17.3-3.1=87.5-1.5=3.3+92.5=5.1+53.7=30.5+8.2=54.3+1.4=7.91-0.41=2.76-0.72=5.55-1.21=7.36-4.24=6.74-6.04=7.26+2.31=4.43+5.23=5.56+3.41=4.13+0.85=2.01+7.42=14.4+2 二19.9-9.6=59.7-9.6=9.77-1.1=89.5-1.5=5.11+2.7=4.4+32.5 二42.9+5.1=1.6+75.2=5.28+4.6 二8.89-3.83=8.27-6.26=4.26-2.13=1.67-0.

30、26=9.64-8.42=4.12+3.31=1.71+2.17=2.22+0.66=1.31+1.07=2.04+4.24=6.8-2-0.4=6.6-5-0.4 二4.8-37+2=9.5-73+4=12+7.4-7=56-5.2+8二2.9-22+9=11+3.8+4=5+21+2.7=0.2+15+6=6-(4.8-0.8)=4.8-(0.4+4)=9.9-6.2-17=73-1.1-3.2=9.5-13-0.2=6.4-4.1-11=3.1+33+3.4=3.1+0.2+5.5=4.5-(9.8-6.3)=6.2-(9.3-4.1)=6.6-5-0.4=83+0.2-2=11+1.1

31、-1=2.5+4.2-2=33+5.3-7=6.5 - 5.2+8二03+5.4+2=2+14+0.2=4+03+5.5=6.9-(3.9-2)=4-(27-17)=33-0.2-2.1=8.8-17-4.1=6.8-07-4.1=6.6-1.1-4.5=93-2.1-5.1=3.2+0.4+61=1.2+1.2+63=3.5-(8.6-6.1)=5.4-(6.9-2.5)=5.4-2-3.1=8.6-8.2+9=5.2+0.6-3=2.9-22+9=2.5-04+4二27+2.1-3=0.2+25+6=11+2+3.6=6.1+0.3+3=9-(8.6-3.6)=7-(6.1-2.1)=6.

32、5-11-2.4=6.9-3.2-03=8.8-1.1-53=3.8 - (1.2+2)二6.2-(0.1+6)=03+1.4+0.2=2.1+1.1+11=8.2-(0.5-0.3)=5.1-(4.7-1.6)=8.4-33-2=2.8-1.4+4=33+5.3-7=7.4-7.1+5=3.9-17+3=5.6 - 3.6+5=13+2+0.4=2+61+0.6=14+0.2+7=9-(8.3-4.3)=9.6-42-4.1=7.9-2.6-3.1=6.6-(0.4+6)=8.8-42-2.5=7.9-(0.1+7)=2.2+21+1.3=8.1+1.4+03=63-(5.6-53)=6.1

33、-(3.5-2.4)=4.1-(8.4-7.3)=6.8-(5.9-1.1)=7.1-(4.6-0.5)=2.7-(0.2+2.2)=4.8-(3.4+1.2)=2.8-(2.1+0.4)=5.4-(3.6-1.2)=7.9-(6.2+1.5)=9.7-(3.4+6.2)=9.9-(2.2+7.5)=7.6-(1.2+6.2)=8.6-(8.8-6.2)=5.6-(4.1+1.2)=7.9-(1.2+6.4)=9.8-(2.1+7.5)=8.9-(6.3+2.5)=8.3-(6.6-2.3)=5.8-(2.4+3.1)=8.6-(6.3+2.2)=1.5-(1.2+0.2)=97-(53+4.

34、2)=9.5-13-3.2=67-0.2-1.5=9.8-5.4-2.4=9.9-57-3.3=49+6.6 - 3.6二09+3.8 - 0.8 二8.2-5.5+03=81+7.6+1.9=6.1+8.2+3.9=19+4.6+5.4=7.5+53+4.7 二6.9+6.2+31=4.1+6.8+32=9.1+8.6+0.9 =1.2+41+1.9+4.8=1.7+3.3+0.5+5.5=0.5+2.4+1.5+3.6=1.4+2.6+02+6.8=0.6+7.8+14+2.2=0.2+2.7+0.8+23=7.8-27-4.1=9.4-1.2-3.2=93-2.4-6.6=2.5+9.3

35、-43=21+8.2-5.2=21+3.8-1.1=13+8.6-2.6=42+3.4+5.8=7.4+31+6.9=42+2.6+5.8=0.4+8.5+9.6=72+5.5+4.5=0.5+4.3+9.5=3.5+15+2.8+2.2=4.4+1.9+11+3.6=4.4+3.6+22+0.8=0.4+1.6+13+6.7=1.5+11+6.9+2.5=0.8+1.5+0.2+0.5=0.6+42+0.8+2.4=9.9-11-4.8=8.9-4.8-2.1=77-1.5-2.2=3.4+8.2-2.2 二11+3.2-1.2=7.4+8.2-5.2=5.7+3.5+43=2.9+94+0

36、.6=5.1+0.5+9.5=4.9+0.3+9.7 =51+7.5+4.9=3.3+54+4.6 二5.7+42+5.8 二1.9+1.3+1.1+67=5.2+0.4+0.8+2.6=0.9+0.8+1.1+0.2=1.4+4.8+22+2.6=1.7+4.1+1.9+23=2.9+5.5+3.1+0.5=6.2+3.64-0.4+1.8=0.5+1.94-1.1+3.5=37+2.9+2.1+2.3=0.9+6.8+3.2+1.1=3.7+1.5+6.3+0.5=0.6+4.4+6.1+0.9 =38+0.3+2.7+3.2 二4.9+41+1.7+0.3=8.6+7.5=7.5+()5

37、.3+8.4=8.4+()9.1+( )=9.6+9.18.9+5.8 O 5.8+8.98.9+3.1 O 3.1+8.93.1+4.4 04.4+3.19.4+27 0 27+9.451+1.4+4.6+0.9=4.2+0.8+11+1.9=0.9+6.8+3.2+1.1 二 0.5+0.4+2.6+0.5= 0.5+3.8+4.2+0.5= 0.6+1.5+5.5+24= 3.3+2.14-2.7+0.9=9.4+6.9=( )+9.4 ()+6.4=6.4+5.3 3.1+( )=3.4+3.1 9.7+7.1 O 7.1+97 2.5+1.5 O 15+2.5 2.2+23 O 23

38、+2.20.7+0.5+7.5+0.3=14+2.6+0.2+6.8=0.8+0.2+5.4+2.6=6.7+0.5+0.5+03=37+2.9+2.1+2.3=2.2+41+3.9+1.8=9.2+8.6=8.6+()1.9+2.6=2.6+()0.4+( )=5.7+0.47.8+( )=0.4+7.84.4+0.4 O 0.4+4.47.2+8.8 O 8.8+7213+5.9 O 5.9+1.37.8-0.4=27.6-0.4=83.5+4.1=15.3-10=65.6-10=38x5x2=711-100=94+9x94=0.597x10=6.26x100=510:5:2二41+41x

39、99=7.9-37-0.2=2.4+7.5-04二17+7.8-5.8=(9-3)x39 =50+4-(8-6)=20-(5-3)x3 =30(5-2)x9 =40(8 + 2)x2 =65.7-1.7=9.48-1.4=93.3+4.5=36.8x10=5x69x2=4x4x25=78+9x78=4.01+1.13=39+27+31=8x7x125=175:1000=99x16+16=9.9-6.2-07=33+6.5-0.5=5.1+37-1.7=(8 - 2)x9：2 二90+8+22+10=30-(9-6)x7 = 117-45-5-50= 40(4+6)x5 =76.3-2.2=2.

40、2+5.39=7.1+51.4=28.8x10=5x67x2=5x94x2=98x9+98=34+17+46=0.479x10=510-5-2=99x77+77=94+99x94二4.8+67-3.7=4.6+93-3.6=11+6.6+3.4=45+40+60+5=1100+254=20-(6-4)x9二80-(7 + 3)x9 =70：(5 + 5)x8=0.314x10000=80-(6+4)x6 =30+70+16+14=(9-6)x(4-2) = 62x16-62x6=118-35-35-30=116-20-30-50=2t60kg = ( )t799dm = ( )m8.4 O 8

41、.17.4 O 7.4635.89 O 5.981467cm O 4.6m0.572km O 572m60(4+6)x3 =70-(8 + 2)x2 =20+10-(6-4) = (6-4)x(9-3) =54x12-2x54=20(64-9x6) =0.8+4.3+6.2+0.7= 3.52kg = ( )g036km = ( )m7.6 O 6.94.214 O 4.21.06 O 1.0680.999kg O 999g20(2 + 8)x5 =60+43+37+40二(9-3)x(6-3) =3000+8+125=16x93-6x93=116-45-15-40=7.9t = ( )kg4

42、.6 O 5.79.605 O 9.66.39 O 6.3941.52 O 1.598433g C 0.433kg算练习-期末复习 总题数：90题班级：用时：47+46+3二5x89x2=33x2x5=2x37x5=64x2x5=119100=158-93-7=34+17+46=125x3x8=125x7x8=7x125x8=126-50-50=0.17x10000=8+70+72+30=4+16+20+80=20+80+6+74=5600+254=53+50+50+17=30+58+22+70=16+24+60+40=3.52x10=2.91x10=53x5x2=64x5x2=2x33x5=

43、4x9x25=968-100=3.76x100=19+34+41=880-5-2=4x8x125=4311000=0.006x100=0.314x1000=50+4+26+50=90+8+22+10=10+90+3+67=0.894x10000=90+32+10+28=70+30+26+44=9+4+6=36+7+3=68+24+6=78+6+14=24+68+2=76+8+12=7+25+15=194-95-5=28+37+13=45+18+25=27+34+33=115-25-75=143-52-48=21+9+50+50=6+60+64+40=109-45-5-50=52+80+18+20=47+20+43+80=58+22+4