学生    学号

一、计算下面各题

90×12-800   252÷4+37    86×25+1850

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468÷6+278   145×28+107   905×32-1800

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200-15×8    200+16×7    200-150÷5

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900+105×8   3250-595÷7   396-25×6

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(200-15)×8  ( 200+16)×7  (200-150)÷5

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(900+105)×8  (3250-1150)÷7  (396-36)×6

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90×(12-8 )  405÷(4+5)   86×(25+1850)

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468÷(569-563)  145×(28+107)  905×(32-18)

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85+125+508   7805-85-627  824+631-31

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285-25+508   6205÷5×36  24×31×56

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441÷7÷9   82×14÷4   824÷2×6

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