减,乘,除)记住是口算!

1个回答

  • 120×2=

    90÷30=

    270÷30=

    270×30=

    84÷21=

    76÷9=

    66÷7=

    100-54=

    123+15=

    360÷4=

    55÷5=

    32×6= 7000÷70=

    200÷40=

    180÷30=

    240÷40=

    35×2=

    140×7=

    13×6=

    280×3=

    350×2=

    50×11=

    250×6=

    7200+900=

    410-201=

    125×8=

    48×20=

    6600÷600=

    390+140=

    11×80=

    24×50=

    3600÷400= 4000÷50=

    530-70=

    420-90=

    9600÷30=

    7×700=

    203+98=

    1800÷300=

    240+570=

    4800÷400=

    370+580=

    580-490=

    910-370=

    25×8=

    270-190=

    36×2=

    75÷25=

    330÷11=

    6×800=

    5400÷9=

    420÷60= 9×800=

    3×330=

    300×7=

    9×500=

    390÷13=

    6300÷700=

    5600÷700=

    4800÷12=

    3500÷7=

    370+560=

    520+490=

    450-90=

    80+330=

    70×700=

    7000÷70=

    4000÷80=

    2400÷200=

    420-90=

    170+320=

    1000-51= 520-260=

    910-190=

    35×200=

    22×200=

    8800÷400=

    9300÷300=

    6×300=

    25 -15 -80 =

    26 -6 -64 =

    27 + 3 -48 =

    28 + 12 -32

    29 + 21 -16 =

    30 + 30 + 0 =

    31 + 39 + 16 =

    32 + 48 + 32 =

    33 + 57 + 48 =

    34 + 66 + 64 =

    35 + 75 + 80 =

    36 + 84 + 96 =

    37 + 93 + 112 =

    38 + 102 + 128 =

    39 + 111 + 144 =

    40 -30 -140 =

    41 -21 -124 =

    42 -12 -108 =

    43 -3 -92 =

    44 + 6 -76 =

    45 + 15 -60 =

    46 + 24 -44 =

    47 + 33 -28 =

    48 + 42 -12 =

    49 + 51 + 4 =

    50 + 60 + 20 =

    51 + 69 + 36 =

    52 + 78 + 52 =

    53 + 87 + 68 =

    54 + 96 + 84 =

    55 -45 -200

    56 -36 -184 =

    57 -27 -168 =

    58 -18 -152 =

    59 -9 -136

    60 + 0 -120

    61 + 9 -104

    62 + 18 -88

    63 + 27 -72 =

    64 + 36 -56

    65 + 45 -40 =

    66 + 54 -24 =

    67 + 63 -8 =

    68 + 72 + 8 =

    69 + 81 + 24

    70 -60 -260

    71 -51 -244 =

    72 -42 -228 =

    73 -33 -212 =

    74 -24 -196 =

    300*400=

    120*500=

    380+450=

    520-360=

    180+930=

    7.2+2.8= 2.63+0.37= 2.5*0.4= 8-2.5

    7.2+2.8=

    12×2.5=

    2.63+0.37=

    0.7×16-16×0.2=

    0.96÷0.3=

    1.5-4.5=

    2.5×0.4

    1.4×2.5×4=

    8-2.5=

    6÷1.2=

    9.2÷2.3=

    24÷4+56÷4=

    0.36+0.64=

    4÷0.25=

    1.8×5=

    30×(200+3)=

    8.4÷4.2=

    8×1.5=

    4.8÷0.3=

    7.2+2.8= 2.63+0.37= 2.5*0.4= 8-2.5

    7.2+2.8=

    12×2.5=

    2.63+0.37=

    0.7×16-16×0.2=

    0.96÷0.3=

    1.5-4.5=

    2.5×0.4

    1.4×2.5×4=

    8-2.5=

    6÷1.2=

    9.2÷2.3=

    24÷4+56÷4=

    0.36+0.64=

    4÷0.25=

    1.8×5=

    30×(200+3)=

    8.4÷4.2=

    8×1.5=

    4.8÷0.3=

    2.73+1.5×4=

    300*400=

    120*500=

    380+450=

    520-360=

    180+930=

    300*45+300*55=