五年級(jí)數(shù)學(xué)混合運(yùn)算簡便算法練習(xí)題

字號(hào):

89×99+89=
     52×15-5×52=
    55×102=
     89×32+89×68=
    125×64=
     45×25+75×45=
    23.5-2.8-7.2=
     55×99=
    58.65-(3.2+8.65)=
     99×125×8=
    3200÷25÷4=
     250÷8×4=
    44×12-88=
     125×24=
    0.134+2.66+0.866=
     7.5+4.9-6.5=
    3.07-0.38-1.62=
     1.29+3.7+2.71+6.3=
    8-2.45-1.55=
     7.6×0.8+0.2×7.6=
    0.85×199=
     0.25×8.5×4=
    1.28×8.6+0.72×8.6=
     12.5×0.96×0.8=
    10.4-9.6×0.35=
     0.8×(4.3×1.25)=
    3.12+3.12×99=
     28.6×101-28.6=
    14-7.32-2.68=
     2.64+8.67+7.36+11.33=
    2.31×1.2×0.5=
     (2.5-0.25)×0.4=
    9.16×1.5-0.5×9.16=
     3.6-3.6×0.5=