289﹣46﹣64 298+102 45×18420÷35 154+36+46 810÷45÷3．
直接写出得数 30╳=÷= 28╳= 1÷=+= 16÷=﹣=╳=
直接写出得数． 0÷= 0.3+= 82+28= 0.22×100=
直接写出得数．×4=×=÷=××= 1÷= 1÷=×0.75=×14+= 1﹣=+=÷5=÷×÷=
直接写得数+=﹣= 1÷= 7×=×3=+=﹣=÷=÷4= 3÷=+= 18×=
直接写出得数：﹣= 0×=÷1= 24.26+0.4=
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= 16÷
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﹣
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╳
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×4=
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= 1
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×0.75=
×14+
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×3=
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