450道口算题带答案的.急

1个回答

  • 17×40=680, 100-63=37, 3.2+1.68=4.88, 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)

    2.(1-1/2)(1-1/3)(1-1/4).(1-1/100)

    3.8+2-8+2

    4.25*4/25*4

    5.7.26-(5.26-1.5)

    6.286+198

    7.314-202

    8.526+301

    9.223-99

    10.6.25+3.85-2.125+3.875

    11.9-2456*21

    12.0.5/11.5-4*2.75

    13.1/2×3/5

    14.3.375+5.75+2.25+6.625

    15.1001-9036÷18

    16.3.8×5.25+14.5

    17.2.1*4.3+5.7*2.1

    18.30×1/3

    19.102*45-328

    20.2/3×12

    21.2.8*3.1+17.6/8

    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

    27.3.5*2.7-52.2/18

    28.1/7×1/5

    29.3.375*0.97+0.97*6.625

    30.25×4/5

    31.6.54+2.4+3.46+0.6

    32.5/6-1/2

    33.95.6*1.8+95.6*8.2

    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

    40.0.15/0.25+0.75*1.2

    41.(1/2+1/3+1/4)*0.24

    42.(25+4)*4

    43.300-4263/21

    44.0.81/0.25+5.96

    45.403÷13×27

    46.1.5×4.2-0.75÷0.25

    47.3.27×4 +3.27×5.7

    48.(1.2+ 1.8)×4.51025-768÷32

    49.0.25×80-0.45÷0.9

    50.1025-768÷32

    51.0.25*2.69*4

    52.2348+275*16

    53.2/9*15/8-1/12*9/5

    54.2.4+2.4*(5.375-3.375)

    55.645-45*12

    56.0.15+1.2/0.24-0.45

    57.3.75-(2.35+0.25/1.25)

    58.76*1/4+23*25/100+0.25

    59.10-2.87-7.13

    60.0.96+9.6*9.9

    61.7.5-5.7*1/3

    62.12.37-3.25-6.75

    63.16*6.8+2.2*16+16

    64.401*19+284

    65.58.7-16.65/3.7

    66.0.4*4.7*2.5+(2.3+5.3)

    67.9.31-1.125-7.875

    68.640+128*45

    69.8.2*1.6-0.336/4.2

    70.400*(0.62+0.08)

    2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2

    4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35

    4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14

    30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18

    5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4

    10/1*90=9 5/3*105=63 19/7*38=14 5/1*25=5

    8/19*16=38 61/60*122=120 7/2*28=8 6/1*48=8

    9/7*18=14 25/7*100=28 9/5*81=45 8/9*16=18

    123+25=148 123-35=88 56×7=392 135÷5=27

    248+89=337 ... 146-23=123 ... 155×5=775 ... 456-12=38...

    456+45=501 ...546-457=89 ... 45×10=451 ... 564-12=47...

    879+54=933 ...896-546=350 ...56×12=672. 45-5=9...

    457+456=913...

    脱式计算

    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

    194-64.8÷1.8×0.9

    36.72÷4.25×9.9

    5180-705×6

    24÷2.4-2.5×0.8

    (4121+2389)÷7

    671×15-974

    469×12+1492

    405×(3213-3189)

    3.416÷(0.016×35)

    0.8×[(10-6.76)÷1.2]

    19.4×6.1×2.3

    5.67×0.2-0.62

    18.1×0.92+3.93

    0.0430.24+0.875

    0.4×0.7×0.25

    0.75×102 100-56.23

    0.78+5.436+1

    4.07×0.86+9.12.5

    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

    194-64.8÷1.8×0.9

    36.72÷4.25×9.9

    5180-705×6

    24÷2.4-2.5×0.8

    (4121+2389)÷7

    671×15-974

    469×12+1492

    405×(3213-3189)

    3.416÷(0.016×35)

    0.8×[(10-6.76)÷1.2]

    19.4×6.1×2.3 5.67×0.2-0.62

    18.1×0.92+3.93 0.0430.24+0.875

    0.4×0.7×0.25 0.75×102 100-56.23

    0.78+5.436+1 4.07×0.86+9.12.5

    简算

    是乘号 /是除号

    0.3*2.5*0.4

    50*0.13*0.2

    0.8*630*0.125

    0.78*101

    1.5*102

    9.8*25

    1.2*2.5+0.8*2.5

    1.25*0.7*0.8

    0.038*5*2.1

    3.8+4.5+6.2

    93/0.31/3

    3.25-0.84-0.16

    88*0.25*4

    2.8*3.6+1.4*2.8

    63*10.1

    (3.2+0.128)/0.8

    9.83*1.5+6.17*1.5

    10.1*87

    312*4+188*4

    0.135*500*0.2

    6.3+0.84+3.7+8.16

    18.75-0.43-4.57

    0.25*0.03*4

    13.7*0.25*8

    2.65*1.7+1.35*1.7

    32.8+5.6+7.2

    (2.5+0.25)*0.4

    8*(2.5*0.25)

    8.4*0.2+1.6*0.2

    1.25*0.8*0.5

    (1.5+0.25)*0.4

    1.2*0.4+1.3*0.4

    方程

    9+6x=14

    x+9x=4+7

    2x+9=17

    8-4x=6

    6x-7=12

    7x-9=8

    x-56=1

    8-7x=1

    x-30=12

    6x-21=21

    6x-3=6

    9x=18

    4x-18=13

    5x+9=11

    6-2x=11

    x+4+8=23

    7x-12=8

    X-5.7=2.15

    15 5X-2X=18

    3X 0.7=5

    x+13=33

    3 - 5x=80

    1.8 +6x=54

    6.7x -60.3=6.7

    9 +4x =40

    2x+8=16

    3.5×2= 4.2 x

    26×1.5= 2x

    0.5×16―16×0.2=4x

    9.25-X=0.403

    16.9÷X=0.3

    X÷0.5=2.6

    3-5x=80

    1.8-6x=54

    6.7x-60.3=6.7

    9 +4x=40

    0.2x-0.4+0.5=3.7

    9.4x-0.4x=16.2

    12-4x=20

    1/3x+5/6x=1.4

    12x+34x=1

    18x-14x=12

    23 x-5×14=14

    12+34x=56

    22-14x=12

    23x-14x=14

    x+14x=65

    23x=14x+14

    30x12x-14x=1

    x-0.7x=3.6