口算 0.1×9.02= 1.6×3= 1.2×0.6= 100÷200= 6.2×0.3= 0.7+7.32= 0.6×07= 2.8÷70= 0.9×0.4= 2.1÷7÷0.1=
+-
1--
口算。+=-=+=-+= 0.63×1000= 0. 75-0.25= 0.07+0.03= 0. 9÷0.03= 0.4×0.8=
×=÷3=÷=－= 3÷15=＋0.25= 1÷= 85%－15%= 10÷10%= 5×÷5×=
脱式计算下面各题。 4÷-0.6×÷ （+）÷÷[1÷(-)]
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×
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÷3=
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÷5×
-0.6
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÷[1÷(
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