简便运算．400÷25÷8 1.25×0.16×8 ×+÷3 0.8×9.9．
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=
直接写出得数 +=﹣= 12×=×14= 20÷=×= 0×=÷=÷×12= 14×÷14×=
直接写出得数 1÷=+=÷=÷=×=+0.8=÷1=×=+=﹣= 24÷=÷=
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×
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×4=
×
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÷
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×
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= 1
÷
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×0.75=
×14+
﹣
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÷
×
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﹣
= 1÷
= 7×
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×3=
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﹣
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÷4= 3÷
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= 18×
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÷1=
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= 12×
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×14= 20÷
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×12= 14×
÷14×
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×
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+0.8=
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